Before proceeding with manufacturing or making modification to the boilers, the Manufacturer shall fill up the type inspection application form (Annex 31) and submit the same along with the documents listed shown below to the local inspecting organization:
1. Type, detailed drawings of structure and strength calculation for the boiler applying for inspection.
2. Type, capacity and quantity of manufacturing and inspection equipment.
3. Brief description of educational background and working experience of the chief designer.
4. Brief description of educational background and working experience of the construction director.
5. Qualification certificates of the Constructor and number of the construction workers.
6. Qualification certificates of the welders, specifications of welding procedures, and records of inspection qualification for welding procedures for those manufacturing or modification work to be made by welding method.
Any alteration of the equipment stipulated inabove Item 2 or change of personnel stipulated in preceding Paragraphs 3 and 4 shall be reported to the local inspecting organization.
The inspecting organization shall issue the Qualification Certificate of Type Inspection for Manufacturing Equipment (Annex 2) for the boilers qualified by the type inspection as stipulated in Paragraph 1.
The manufacture or modification task shall be prohibited from implementation without passing the inspection. However, this restriction shall not apply to the case where the types and conditions have previously passed the type inspection.

Manufacturers of boilers shall be responsible for implementing the quality control and quality assurance measures, and shall ensure that the involved equipment and personnel meet the requirements as shown below:
1. Manufacturing and inspection equipment
(1) Those manufactured or modified by using the riveting method shall have: bending machines, air compressors, punching machines, riveting hammers, caulkers and hydraulic pressure testing equipment.
(2) Those manufactured or modified by using the welding method shall have:
A. Manufactured or modified totally by using the welding method : Plate bending machines, welding machines, punches, annealing furnace, universal testing machines, hydraulic pressure testing equipment and radiation inspection equipment.
B. Manufactured or modified Partially by welding method: Plate bending machines, welding machines, punches, universal testing machines, hydraulic pressure testing equipment and radiation inspection equipment.
C. Manufacture of throughflow boilers with steam separators with the inside diameter over 300mm: Plate bending machines, pipe benders, welding machines, punching machines, annealing furnaces, universal testing machines, hydraulic pressure testing equipment.
D. Manufacture of throughflow boilers with steam separators with the inside diameter less than 300mm: Pipe benders, sealing machines, hydraulic pressure testing equipment.
E. Manufacture of throughflow boilers without steam separators: Pipe benders, sealing machines, hydraulic pressure testing equipment.
F. Manufacture of steel tubes for boiler body with the max. diameter: Plate bending machines, sealing machines, punches, annealing furnaces, universal testing machines, hydraulic pressure testing equipment and radiation inspection equipment.
G. Circumferential jointing of boilers with inside diameter of the shell body less than 300mm, or welding only implemented for the tube sheets and flanges but other parts: Welding machines, hydraulic pressure testing equipment.
H. Manufacture of wavy boiler barrels or expansion joints: Plate bending machines, punches or forming machines, welding machines, hydraulic pressure testing equipment and radiation inspection equipment. While radiation inspection equipment may be exempted for implementation of vertical welding of the wavy boiler barrels.
(3) Those manufactured or modified by using the casting method shall have: casting equipment and hydraulic pressure testing equipment.
2. The chief designer shall meet one of the qualifications as follows:
(1) Registered professional engineer relating to mechanical engineering discipline.
(2) College graduate majored in mechanical engineering related disciplines together with over five ( 5 ) years of experience in design, manufacture or inspection of the machinery subject to the type inspections.
(3) Vocational high school graduate majored in mechanics related disciplines together with over eight ( 8 ) years of experience in design, manufacture or inspection of machinery subject to type inspections.
(4) Senior technician with over twelve (12) years of experience in design, manufacture or inspection of machinery subject to type inspections.
3. Construction director shallmeet one of the qualifications as shown below:
(1) College graduate majored in mechanical engineering related disciplines together with over two ( 2 ) years of experience in design, manufacture or inspection of machinery subject to type inspections.
(2) Vocational high school graduate majored in mechanics related disciplines together with over five ( 5 ) years of experience in design, manufacture or inspection of machinery subject to type inspections.
(3) Senior technician with over eight ( 8 ) years of experience in design, manufacture or inspection of machinery subject to type inspections.
4. Construction technicians shall meet the qualifications as shown below:
(1) Those involving the manufacture or modification works to be done by using the riveting method shall have over three ( 3 ) years of working experience relating to riveting affairs.
(2) Those involving the manufacture or modification works to be done by using welding method shall maintain qualificationcertificates for the related welding procidures.
(3) Those involving the manufacture or modification works to be done by using thecasting method shall have over three (3) years of working experience relating to casting affairs.
The requirement for installation of punching machines as stipulated in Item 1 of the preceding Paragraph shall only apply to the case where the boilers have their maximum operating pressure exceeding seven ( 7) kg/c㎡. The installation of annealing furnaces shall be limited to the case where the annealing process is required to be implemented in accordance with the related regulations.
If the punching machines ( as mentioned in Sub-items 1, 2-1 through 2-3, 2-6 and 2-8 of Item 1 under preceding Paragraph 1), annealing furnaces (as mentioned in Sub-items 2-1, 2-3 and 2-6 of Item 1 under preceding Paragraph 1), the universal testing machines ( as mentioned in 2-1 through 2-3, 2-6 and 2-8 of Item 1 under preceding Paragraph 1), and radiation inspection equipment ( as mentioned in 2-1 through 2-3, 2-6 and 2-8 of Item 1 under preceding Paragraph 1), can be ready for use at any time, or they are co-owned with other organizations , the inspection organization may deem that the Manufacturer is in possession of the said equipment.
The Manufacturer in charge of the casting activities as mentioned in Sub-item 3 of Item 1 under preceding Paragraph 1 shall establish a dedicated inspection unit for inspection of the casting parts.
If the Manufacturer has mandated a qualified person to serve as the chief designer as mentioned in Item 2 of the preceding Paragraph 1 , the inspecting organization may deem that the said person has been stationed.

Manufacturers of boilers manufactured by sealing shall apply for sealing inspection at local inspecting organization before the construction. However, this limitation shall not apply to those meeting any of the items shown below:
1. Auxiliary equipment or those only sealing stress parts without stress under compression.
2. Throughflow boilers. However, this shall not apply to boilers with steam separators with inside diameter over 300mm.
3. Those only sealing the parts shown below:
(1) Circumferential joints of main steam pipes, water supply pipes or header with inside diameter less than 300mm.
(2) Reinforcement materials, pipes, pipe table, flanges and valve bases etc. sealed on the body or the end plates.
(3) Sealing around the charging holes of barrel type boilers or vertical boilers etc.
(4) Sealing supporting racks or other objects withstanding no pressure on the body or the end plates.
(5) Leakproof sealing.
(6) For boiler drums with inside diameter less than 300mm, only sealing the drum body with the coronal plate or the joint of the drum body and the boiler body.
The sealing inspection items shall include material inspection, surface inspection, mechanical performance test for sealed parts, radiation inspection, heat treatment inspection and other necessary inspections.

When applying for sealing inspection of boilers, the Manufacturer shall fill the Application for Sealing Inspection of Boilers (Annex 32) and submit the documents shown below:
1. Material certificate 1 copy
2. 2 copies of specification of sealing (Annex 32) and 1 copy of construction locations classification map.
3. 2 copies of detailed structure drawing and strength calculation sheet.
4. Sealing technician certificate of sealing constructors.
5. Qualification certificate for the type inspection of manufacturing facilities, sealing procedure and sealing procedure qualification examination records.

When carrying out the sealing inspection on boilers, the inspecting organization shall first examine the documents submitted by the Manufacturer, and the site inspection shall then be carried out after the documents are qualified.
When carrying out the site inspection, personnel designated by the Manufacture or the Manufacturer shall be on the scene and prepare the items shown below before the inspection：
1. Test pieces for mechanical performances.
2. Radiation inspection.

The inspecting organization shall stamp the qualification mark (annex 34) on the specification of Boilers for the boilers qualified in the completion test, after being signed by the Inspector, 1 copy of the specification shall then be delivered to the applicant, and the qualification mark shall be printed, painted or posted at distinct part of the object inspected for identification.

Upon completion of the boiler body, the Manufacturer shall apply for structure inspection at local inspecting organization.
However, for water tube boilers, combined cast iron boilers and other separate composite boilers, the structure inspection shall be applied for at local inspecting organization before the installation.

To apply for structure inspection of the boilers, the Manufacturer shall fill up and submit an Application Form(Annex 35) for Structure Inspection of boilers together with the following documents:
1.Two (2) copies of the specification(Annex 36) of the boiler.
2.Two (2) copies each of the detailed structure drawings and the strength calculation sheets.
3.One (1) copy of the welding list with a stamp indicating the qualification status of the inspection of those manufactured by using welding method shall be attached.
4.One (1) copy of the certificate indicating qualification status of the type inspection of those manufactured by using riveting method shall be attached.
In case both the welding inspection and the structure inspection are carried out by the same Inspecting Organization, the documental requirements stated in above Items 2 and 3 may be exempted.
The coverage of the structure inspection mentioned in the preceding Paragraph 1 shall include inspection of construction methods, material thickness, structure, dimensions, heat transfer area, maximum operating pressure, strength calculation review, and arrangement of the manhole, cleaning hole, the safety devices, as well as pressure test, and materials used for shell body, end plate, pipe sheet, smoke tube, fire chamber and fire tube and etc., and other inspections as required.

When the inspecting organization carries out structure inspection on boilers, the Manufacture or personnel designated by the Manufacture shall be on the scene and prepare the items shown below.
1. Place the objects of inspection at locations convenient for inspection.
2. Prepare for pressure tests like hydraulic pressure test etc.

The inspecting organization shall stamp the qualification mark (annex 34) on the Detailed List of Boilers for the boilers qualified in the completion test qualified, after being signed by the Inspector, 1 copy of the list shall then be delivered to the applicant, and the qualification mark shall be printed, painted or posted at distinct part of the object inspected for identification.

Upon completion of the installation of the boiler, the employer shall apply for completion inspection at the inspecting organization; those not receiving the completion inspection shall not be used.
When the inspecting organization carries out structure inspection on boilers, the Manufacture or personnel designated by the Manufacture shall be on the scene

When applying for completion inspection of boilers, the Manufacturer shall fill the Application for Completion Inspection of Boilers (Annex 37) and submit the documents shown below:
1. Specification of the boiler with seal of qualification mark for the structure inspection or reinspection.
2. Map for the installation site of the boiler and peripheral situations.
The Completion inspection of boilers shall include inspections on the quantity and capacity of safety valves, blowoff test, quantity and locations of level gauges, capacity and quantity of the water supply and drainage devices, safety equipment of the water treatment devices and the boilers, equipment, foundation, entrance, exit and safety devices of the boiler room, quantity and dimensions of the pressure gauge and other necessary inspections.
The inspecting organization shall issue the Report for Results of Completion inspection of boilers (Annex 38) and the Qualification Certificate (Annex 39) to boilers qualified in the completion inspection, the max period of validity for the aforesaid documents shall be 1 year.
The employer shall hang the aforesaid Qualification Certificate or its photocopy in the boiler toom or obvious locations in the workplace.

The employer shall fill the Application for Periodic Inspection of Boilers (Annex 40) 1 month before the expiry of the qualification certificate for the inspection of boilers and apply for periodic inspection at the inspecting organization.

After qualifying the completion inspection on boilers and during the period of the first periodic inspection, the employer shall carry out internal of external inspections. After the aforesaid periodic inspection, the external inspection shall be carried out more that once a year; and the internal inspection shall be in accordance with the stipulations shown below:
1. Boilers attached to chemical equipment connected with pipes for continuous production procedure or boilers for generation and their auxiliary boilers shall be inspected more that once every 2 years.
2. Boilers other than what stipulated in the previous subparagraph shall be inspected more that once a year.
For boilers for generation with generating capacity over 20,000kw, the external inspection as mentioned in the previous paragraph shall be extended and carried out along with the internal inspection. But its period cannot exceed 2 years.

After accepting the application for internal inspection, the inspecting organization shall notify the employer of the date for the completion inspection for boilers so that they can resume the inside of the boilers to the normal temperature and pressure, discharge the contents and carry out ventilation, air change, cleaning for the boilers and prepare for other necessary proceedings for the periodic inspection.
The internal inspection mentioned in the previous paragraph shall include surface inspection of the boilers and nondestructive inspectors for thickness, cracks, distortion and defilement of the boilers, and determine the pressure test and other necessary inspections to be carried out according to the results of the aforesaid inspections.

The items of external inspection include visual examination, detection of the corrosion, cracks, distortion, defilement and leakage on the surface, if necessary, the non-destructive detection, ultrasonic thickness measurement as fixed points in corrodible areas, accessories and auxiliary devices inspection shall also be carried out. Whenever necessary, proper instruments shall be adopted to detect the inside of the boiler, if something abnormal is found, the internal inspection shall then be carried out.
The ultrasonic thickness measurement stipulated in the previous paragraph may be exempted if there're problems like high temperature etc. that leads to difficulty in the measurement
When carrying out the external inspection on boilers, the inspecting organization he shall notify the employer of the date of inspection. During the inspection, the Manufacture or personnel designated by the Manufacture shall be on the scene.

The inspecting organization shall sign on the original qualification certificate of boilers qualified in the periodic inspection and indicate the period of service (1 years at the most), but for paragraph 3 of Article 84, the period may be 2 years.
The Inspector shall fill the Report for the Result of Periodic Inspection for Boilers (Annex 41) after the completion of the periodic inspection and notify the employer of the results.

If the boiler is deemed unqualified in the periodic inspection, the inspector shall record the disqualification in the record of the qualification certificate of the inspection and notify of the improvement; if the situation is serious and has the possibility of resulting in danger, if shall be reported to the inspection organization for limitation of its max pressure or prohibition of use.

In case any of the following situations exists, the Owner/Employer of the boiler shall submit the Inspecting Organization a re-inspection application for qualifying the said boilers:
1. The boiler to be used, is imported from foreign countries.
2. The boiler to be installed or re-used, has been idle for over one(I) year since the last qualification date of its structure inspection, re-inspection, completion Inspection or periodic inspection of the said boiler.
3. The boiler to be re-used, has previously been banned by the Inspection Organization.
4. The fixed type boiler to be re-installed, is relocated at a place different from its original location.
5. The maximum operation pressure is to be up-rated.
6. The heat transfer area is to be changed.
For those imported pressure vessels which are documented by the proper corresponding inspection certificates, the Inspecting Organization may grant exemption from all or part of the inspection requirements as stipulated in this Article.

When applying for the reinspection of boilers, the owner or the employer shall fill the Application for reinspection of boilers (Annex 42) and submit the documents listed below:
1. 2 copies of specification of the boiler.
2. Detailed drawing of structure and calculation sheet, each 2 copies. However, those deemed unnecessary by the inspecting organization may be ignored.
3. Aforesaid certificates for qualification of inspections or their photocopies.
Stipulations of Paragraph 3 of Article 78 and Article 79 shall apply to the reinspection.

Once the boiler has been qualified through the re-inspection process, the specification of the said boiler shall be stamped with a qualification mark and signed by the inspector of the Inspection Organization.One(1) copy of the above-mentioned specification shall then be delivered to the applicant to serve as an evidence of the qualification status of the re-inspection, for use to proceed with the Completion Inspection. However, for those boilers which have been either idle for over one(1) year after being qualified by the completion/periodic inspection, or prohibited from operation as respectively stipulated in Items 2 and 3 under Paragraph 1 of Article 89, if the said boilers which either remain at their original locations or are relocated at other places in the factory, are qualified by the inspection, the Inspection Organization may add the date and result of the inspection as well as the operation expiration duration with one(1) year as a maximum, on the original qualification certificate.
For those imported boilers, the qualification mark shall be stamped on the distinct portion of the same after being inspected for identification purpose.

If any of the items shown below of the boiler needs to be altered, the owner of the employer shall apply for the alteration inspection at the inspection organization:
1. Body, header, fire tube, firebox, end plate, pipe sheet, tamina tectalis or reinforcement support of boiler.
2. Overheater or economizer.
3. Combustion train
4. Installation base.
The inspecting organization shall record the date of inspection, altered parts and results of the inspection on the original qualification certificate of the boiler for the boilers qualified in the completion test
If over 1/3 of the body or header of the boiler is to be altered or the fire tube, firebox, end plate and pipe sheet are to be entirely altered, the alteration shall be carried out according to stipulations of Article 71.

When applying for the alteration inspection of boilers, the Manufacturer shall fill the Application for Alteration Inspection of boilers (Annex 43) and submit it the documents as shown below.
1. Qualification certificate of the type inspection of the manufacturing equipment.
2. 2 copies of specification of the boiler
3. Drawings of the altered parts.
4. Detailed structure drawing and strength calculation sheet, each 2 copies. However, this may be ignored if the inspecting organization deems it unnecessary.
5. Aforesaid certificates for qualification of inspections or their photocopies.
Stipulations of Paragraph 3 of Article 73 and Article 79 shall apply to the alteration inspection.

When carrying out the structure inspection, completion inspection, periodic inspection, reinspection or alteration inspection, the inspecting organization, if considering necessary, shall notify the owner of the boilers and the employer or his/her agent of the measures shown below:
1. Remove all or part of the covering on the inspected object.
2. Pull out the rivet or pipe.
3. Drill holes on the plate or pipes.
4. Disassemble the cast iron boilers.
5. Other necessary proceedings.
For subparagraph 3 of the previous paragraph, the applicant shall apply for non-destructive inspection and submit supporting documents.

Before manufacturing or revising the Category Ι pressure vessels, the Manufacturer shall fill the type inspection application (Annex 31) and submit the application along with the documents listed below at local inspecting organizations:
1. Type, detailed structure drawings and strength calculation sheet for the Category Ι pressure vessel applying for inspection.
2. Type, capacity and quantity of the manufacturing and inspection equipment.
3. Educational background and working experience of the chief designer.
4. Educational background and working experience of the principal of construction.
5. Qualifications and number of constructors.
6. For sealing manufacture or revision, qualification certificates of the sealer, procedure of sealing and records of qualification inspection for sealing procedure shall be provided.
Any alteration of the equipment stipulated in subparagraph 2 or personnel stipulated in paragraphs 3,4 of the previous paragraph shall be reported to the local inspecting organization.
The inspecting organization shall issue the Qualification Certificate of Type Inspection for Manufacturing Equipment (Annex 2) for qualifiers in the type inspection as stipulated in Paragraph 1.
The manufacture or revision shall not be carried out without passing the inspection. However, this shall not apply to types and conditions that have already passed the type inspection.

For the manufacturing of Category Ι pressure vessels, except those made by a whole piece of material, quality control, quality assurance measures shall be taken, and the equipment of personnel shall be in accordance with the stipulations in Article 72.
The equipment and personnel for the manufacture of Category Ι pressure vessels made by a whole piece of material shall meet the stipulations shown below except the chief designer, who shall apply to stipulations in Subparagraph 2 of paragraph 1 in Article 72:
1. Manufacturing and inspection equipment shall include: Digging equipment, hydraulic pressure testing instruments.
2. Principle of the construction shall meet one of the qualifications shown below:
(1) Graduating form departments relating to mechanics in colleges and or with qualifications of technicians for mechanics, and with over 1 year of experience in design, manufacture or inspection of machinery for type inspections.
(2) Graduating from departments relating to mechanics in vocational high schools and with over 2 years of experience in design, manufacture or inspection of machinery for type inspections.
(3) With over 5 years of experience in design, manufacture or inspection of machinery for type inspections.
3. The constructors shall have over 2 years of working experience in the field relating to digging.

Manufacturers of Category Ι pressure vessels manufactured by sealing shall apply for sealing inspection at local inspecting organization before the construction. However, this limitation shall not apply to those meeting any of the cases shown below:
1. Auxiliary equipment or those only sealing stress parts without stress under compression.
2. Those only sealing the parts shown below:
(1) Circumferential joints of pipes with inside diameter less than 300mm.
(2) Reinforcement materials, pipes, pipe table, flanges and valve bases etc. sealed on the body or the end plates.
(3) Sealing supporting racks or other objects withstanding no pressure on the body or the end plates.
(4) Leakproof sealing.
The sealing inspection items shall include material inspection, surface inspection, mechanical performance test for sealed parts, radiation inspection, heat treatment inspection and other necessary inspections.

When applying for sealing inspection of pressure vessel s, the Manufacturer shall fill the Application for Sealing Inspection of Pressure vessel s (Annex 32) and submit the documents shown below:
1. Material certificate 1 copy.
2. 2 copies of specification of sealing (Annex 32) and 1 copy of construction locations classification map.
3. 2 copies of detailed structure drawing and strength calculation sheet.
4. Sealing technician certificate of sealing constructors.
5. Qualification certificate for the type inspection of manufacturing facilities, sealing procedure and sealing procedure qualification examination records.

When carrying out the sealing inspection on Category Ι pressure vessels, the inspecting organization shall first examine the documents submitted by the Manufacturer, and the site inspection shall then be carried out after the documents are qualified.
When carrying out the site inspection, personnel designated by the Manufacture or the Manufacturer shall be on the scene and prepare the items shown below before the inspection：
1. Test pieces for mechanical performances.
2. Radiation inspection.

The inspecting organization shall stamp the qualification mark (annex 34) on the specification of Category Ι pressure vessels for Category Ι pressure vessels qualified in the completion test, after signed by the Inspector, 1 copy of the specification shall then be delivered to the applicant, and the qualification mark shall be printed, painted or posted at distinct part of the object inspected for identification.

Upon completion of the body of the Category Ι pressure vessel, the Manufacturer shall apply for structure inspection at local inspecting organization.However, for Category Ι pressure vessels separately assembled at the site of installation, the structure inspection shall be applied for at local inspecting organization before the installation.

To apply for the structure inspection of the category Ι pressure vessel , the Manufacturer shall fill up and submit an Application Form(Annex 35) for Structure Inspection of pressure vessels together with the following documents :
1. Two(2) copies of the specification(Annex 44) of the category Ι pressure vessel.
2. Two(2) copies each of the detailed structure drawings and the strength calculation sheets.
3. One(1) copy of the welding list with a stamp indicating the qualification status of the inspection of those manufactured by using welding method shall be attached.
4. One (1) copy of the certificate indicating qualification status of the type inspection of those manufactured by using riveting method shall be attached.
In case both the welding inspection and the structure inspection are carried out by the same Inspecting Organization, the documental requirements stated in above Items 2 and 3 may be exempted..
The coverage of the structure inspection mentioned in the preceding Paragraph 1shall includes inspection of the construction methods, the material thickness, the structure, the dimensions, the maximum operating pressure, the strength calculation review, and the arrangement of the manhole, the cleaning hole, and the safety devices, as well as the pressure test, and the materials used for the shell body, the end plate, the pipe sheet, the smoke tube, the fire chamber and the fire tube and etc., and other inspections as required.

When the inspecting organization carries out structure inspection on Category Ι pressure vessels, the Manufacture or personnel designated by the Manufacture shall be on the scene and prepare the items shown below.
1. Place the objects of inspection at locations convenient for inspection.
2. Prepare for pressure tests like hydraulic pressure test etc.

The inspecting organization shall stamp the qualification mark (annex 34) on the Detailed List of Category Ι pressure vessels for Category Ι pressure vessels qualified in the completion test or deemed qualified according to paragraph 3 of Article 13, after signed by the Inspector, 1 copy of the list shall then be delivered to the applicant, and the qualification mark shall be printed, painted or posted at distinct part of the object inspected for identification.

Upon completion of the installation of Category Ι pressure vessel , the employer shall apply for completion inspection at the inspecting organization; those not receiving the completion inspection shall not be used.
When the inspecting organization carries out structure inspection on pressure vessel s, the Manufacture or personnel designated by the Manufacture shall be on the scene

When applying for completion inspection of pressure vessels, the Manufacturer shall fill the Application for Completion Inspection of Category Ι pressure vessels (Annex 37) and submit the documents shown below:
1. Specification of the pressure vessel with seal of qualification mark for the structure inspection or reinspection.
2. Map for the installation site of the pressure vessel and peripheral situations
The Completion inspection of pressure vessel s shall include inspections on the quantity and capacity of safety valves, blowoff test, safety equipment quantity and dimensions of the pressure gauge and other necessary inspections.
The inspecting organization shall issue the Report for Results of Completion inspection of Pressure vessel s (Annex 45) and the Qualification Certificate (Annex 39) to Category Ι pressure vessel s qualified in the completion inspection, the max period of validity for the aforesaid documents shall be 1 year.

The employer shall fill the Application for Periodic Inspection of Category Ι pressure vessel s (Annex 40) 1 month before the expiry of the qualification certificate for the inspection of pressure vessel s and apply for periodic inspection at the inspecting organization.

The periodic inspection of the pressure vessel s shall be carried out more than one time per year, the external inspection shall be in accordance with the stipulations shown below:
1. More than 2 Category Ι pressure vessels connected with pipelines for continuous production procedure or Category Ι pressure vessels for generation shall be inspected more that once every 2 years.
2. Category Ι pressure vessels other than what stipulated in the previous subparagraph shall be inspected more that once a year.
For pressure vessel s for generation with generating capacity over 20,000kw, the external inspection as mentioned in the previous paragraph shall be extended and carried out along with the internal inspection. But its period cannot exceed 2 years.

If the internal inspection for the Category Ι pressure vessels shown below cannot be carried out, the employer shall submit documents including safety and health management status, auto inspection plans and implementation records, photocopy of the qualification specification for the structure inspection of the vessel, detailed structure drawing, production flow chart, emergent treatment plans, auto control system and proposal of substitutes at the inspecting organization for approval of extending the period of the internal inspection or substitution with other means of inspection:
1. Those free of manholes or cannot be equipped with manholes, leaning holes or inspection hole due to structural reasons.
2. Those with accelerant, molecular sieve or other special contents inside.
3. System equipment that cannot be separated during the continuous production procedure.
4. Others that have difficulty in internal inspection.
If the Category Ι pressure vessels mentioned in the previous paragraph are attached to boilers, the inspection period shall be extended accordingly.

After accepting the application for internal inspection, the inspecting organization shall notify the employer of the date for the completion inspection for Category Ι pressure vessels so that they can resume the inside of the Category Ι pressure vessels to the normal temperature and pressure, discharge the contents and carry out ventilation, air change, cleaning for the Category Ι pressure vessels s and prepare for other necessary proceedings for the periodic inspection.
The internal inspection mentioned in the previous paragraph shall include surface inspection of the Category Ι pressure vessels and nondestructive inspections for thickness, cracks, distortion and defilement of the Category Ι pressure vessels s, and determine the pressure test and other necessary inspections to be carried out according to the results of the aforesaid inspections.
Category Ι pressure vessels without corrosive contents that have difficulty in internal inspection shall receive pressure test with the pressure 1.5 times of the common pressure, the pressure test can also be carried out on the contents with the pressure over 1.1 times of the common pressure, and the air tight test and visual examination with the pressure above the common pressure shall be carried out as substitute.

The items of external inspection include visual examination, detection of the corrosion, cracks, distortion, defilement and leakage on the surface, if necessary, the non-destructive detection, ultrasonic thickness measurement as fixed points in corrodible areas, accessories and auxiliary devices inspection shall also be carried out. Whenever necessary, proper instruments shall be adopted to detect the inside of the Category Ι pressure vessels, if something abnormal is found, the internal inspection shall then be carried out.
The ultrasonic thickness measurement stipulated in the previous paragraph may be exempted if there're problems like high temperature etc. that leads to difficulty in the measurement
When carrying out the external inspection on Category Ι pressure vessels, the inspecting organization he shall notify the employer of the date of inspection. During the inspection, the Manufacture or personnel designated by the Manufacture shall be on the scene.

The inspecting organization shall sign on the original qualification certificate of Category Ι pressure vessels qualified in the periodic inspection and indicate the period of service (1 years at the most), but for paragraph 2 of Article 108, the period may be 2 years.
The Inspector shall fill the Report for the Result of Periodic Inspection for Category Ι pressure vessels (Annex 46) after the completion of the periodic inspection and notify the employer of the results.

If the Category Ι pressure vessel is deemed unqualified in the periodic inspection, the inspector shall record the disqualification in the record of the qualification certificate of the inspection and notify of the improvement; if the situation is serious and has the possibility of resulting in danger, if shall be reported to the inspection organization for limitation of its max pressure or prohibition of use.

In case any of the following situations exists, the Owner/Employer of the category Ι pressure vessel shall submit the Inspecting Organization a re-inspection application for the said category Ι pressure vessel:
1. The pressure vessel to be used is imported from foreign countries.
2. The pressure vessel to be installed or re-used, has been idle for over one(I) year since the last qualification date of its structure inspection, re-inspection, completion Inspection or periodic inspection of the said boiler., except for those approved by the Inspection Organization,
3. The pressure vessel to be re-used, has previously been banned by the Inspection Organization.
4. The fixed type category Ιpressure vessel to be re-installed, is relocated at a place different from its original location.
5. The maximum operation pressure is to be up-rated.
6. The category of the contents to be changed.
In case the equipment category of the categoryΙ pressure vessel is changed to be a specific equipment for high pressure gases resulting from the reason as per Item 6 of the preceding Paragraph 1, the said pressure vessel shall be inspected in compliance with requirements related ro the specific equipment for the high pressure gases.
For those imported pressure vessels which are documented by the proper corresponding inspection certificates, the Inspecting Organization may grant exemption from all or part of the inspection requirements as stipulated in this Article.

When applying for the reinspection of Category Ι pressure vessels, the owner or the employer shall fill the Application for reinspection of Category Ι pressure vessels (Annex 42) and submit the documents shown below:
1. 2 copies of specification of the Category Ι pressure vessel.
2. Detailed drawing of structure and calculation sheet, each 2 copies. However, those deemed unnecessary by the inspecting organization may be ignored.
3. Aforesaid certificates for qualification of inspections or their photocopies.
Stipulations of Paragraph 3 of Article 102 and Article 103 shall apply to the reinspection.

Once the category Ι pressure vessel has been qualified through the re-inspection process, the specification of the said boiler shall be stamped with a qualification mark(Annex 34) and signed by the inspector of the Inspection Organization.One(1) copy of the above-mentioned specification shall then be delivered to the applicant to serve as an evidence of the qualification status of the re-inspection, for use to proceed with the Completion Inspection. However, for those pressure vessel which have been either idle for over one(1) year after being qualified by the completion/periodic inspection, or prohibited from operation as respectively stipulated in Items 2 and 3 under Paragraph 1 of Article 114, if the said pressure vessels which either remain at their original locations or are relocated at other places in the shop, are qualified by the inspection, the Inspection Organization may add the date and result of the inspection as well as the operation expiration duration with one(1) year as a maximum, on the original qualification certificate.
For those imported category Ι pressure vesse, the qualification mark shall be stamped on the distinct portion of the same after being inspected for identification purpose.

If the alteration of the Category Ι pressure vessel results in alteration of the body, header, end plate, tamina tectalis or reinforcement support, the owner or the employer shall apply at the local inspecting organization for the alteration inspection.
The inspecting organization shall record the date of inspection, altered parts and results of the inspection on the original qualification certificate of the Category Ι pressure vessel for the Category Ι pressure vessels qualified in the completion test
If over 1/3 of the body or header of the Category Ι pressure vessel is to be altered or the end plate and pipe sheet are to be entirely altered, the alteration shall be carried out according to stipulations of Article 95.

When applying for the alteration inspection of Category Ι pressure vessels, the Manufacturer shall fill the Application for Alteration Inspection of Category Ι pressure vessels (Annex 43) and submit it the documents as shown below.
1. Qualification certificate of the type inspection of the manufacturing equipment.
2. 2 copies of specification of the Category Ι pressure vessel
3. Drawings of the altered parts.
4. Detailed structure drawing and strength calculation sheet, each 2 copies. However, this may be ignored if the inspecting organization deems it unnecessary.
5. Aforesaid certificates for qualification of inspections or their photocopies.
Stipulations of Paragraph 3 of Article 102 and Article 103 shall apply to the inspection.

When carrying out the structure inspection, completion inspection, periodic inspection, reinspection or alteration inspection, the inspecting organization, if considering necessary, shall notify the owner of the Category Ι pressure vessels and the employer or his/her agent of the measures shown below:
1. Remove all or part of the covering on the inspected object.
2. Pull out the rivet or pipe.
3. Drill holes on the plate or pipes.
4. Disassemble the heat exchanger.
5. Other proceedings considered necessary.
For subparagraph 3 of the previous paragraph, the applicant shall apply for non-destructive inspection and submit supporting documents.

Before manufacturing or revising pressure vessels, the Manufacturer shall fill the type inspection application (Annex 31) and submit the application along with the documents listed below at local inspecting organizations:
1. Type, detailed structure drawings and strength calculation sheet for the special equipment for high-pressure gases applying for inspection.
2. Type, capacity and quantity of the manufacturing and inspection equipment.
3. Educational background and working experience of the chief designer.
4. Educational background and working experience of the principal of construction.
5. Qualifications and number of constructors.
6. For sealing manufacture or revision, qualification certificates of the sealer, procedure of sealing and records of qualification inspection for sealing procedure shall be provided.
Any alteration of the equipment stipulated in subparagraph 2 or personnel stipulated in paragraphs 3,4 of the previous paragraph shall be reported to the local inspecting organization.
Quality control and assurance measures, equipment and personnel of the type inspection as stipulated in Paragraph 1 shall apply to stipulations in Article 96, and the inspecting organization shall issue the Qualification Certificate of Type Inspection for Manufacturing Equipment (Annex 2) for qualifiers in the type inspection.
The manufacture or revision shall not be carried out without passing the inspection. However, this shall not apply to types and conditions that have already passed the type inspection.

Manufacturers of special equipment for high-pressure gases manufactured by sealing shall apply for sealing inspection at local inspecting organization before the construction. However, this limitation shall not apply to those meeting any of the cases shown below :
1. Auxiliary equipment or those only sealing stress parts without stress under compression.
2. Those only sealing the parts shown below:
(1) Circumferential joints of pipes with inside diameter less than 300mm.
(2) Reinforcement materials, pipes, pipe table, flanges and valve bases etc. sealed on the body or the end plates.
(3) Sealing supporting racks or other objects withstanding no pressure on the body or the end plates.
(4) Leakproof sealing.
The sealing inspection items shall include material inspection, surface inspection, and mechanical performance test for sealed parts, radiation inspection, heat treatment inspection and other necessary inspections.

When applying for sealing inspection of pressure vessel s, the Manufacturer shall fill the Application for Sealing Inspection of Pressure vessel s (Annex 32) and submit the documents shown below:
1. Material certificate 1 copy
2. 2 copies of specification of sealing (Annex 32) and 1 copy of construction locations classification map.
3. 2 copies of detailed structure drawing and strength calculation sheet.
4. Sealing technician certificate of sealing constructors.
5. Qualification certificate for the type inspection of manufacturing facilities, sealing procedure and sealing procedure qualification examination records.

When carrying out the sealing inspection on special equipment for high-pressure gases, the inspecting organization shall first examine the documents submitted by the Manufacturer, and the site inspection shall then be carried out after the documents are qualified.
When carrying out the site inspection, personnel designated by the Manufacture or the Manufacturer shall be on the scene and prepare the following items before the inspection：
1. Test pieces for mechanical performances.
2. Radiation inspection.

The inspecting organization shall stamp the qualification mark (annex 34) on the specification of special equipment for high-pressure gases for special equipment for high-pressure gases qualified in the completion test, after signed by the Inspector, 1 copy of the specification shall then be delivered to the applicant, and the qualification mark shall be printed, painted or posted at distinct part of the object inspected for identification.

Upon completion of the body including the towers and the tanks etc. of the special equipment for producing high-pressure gases, the Manufacturer shall apply for structure inspection at local inspecting organization.However, for special equipment for high-pressure gases separately assembled at the site of installation, the structure inspection shall be applied for at local inspecting organization before the installation.

To apply for the structure inspection of special equipment for high-pressure gases, the Manufacturer shall fill up and submit an Application Form(Annex 35) for Structure Inspection of the special equipment for high-pressure gases together with the following documents :
1. Two (2) copies of the specification(Annex 44) of special equipment for high-pressure gases.
2. Two (2) copies each of the detailed structure drawings and the strength calculation sheets.
3. One (1) copy of the welding list with a stamp indicating the qualification status of the inspection of those manufactured by using welding method shall be attached.
4. One (1) copy of the certificate indicating qualification status of the type inspection of those manufactured by using riveting method shall be attached.
In case both the welding inspection and the structure inspection are carried out by the same Inspecting Organization, the documental requirements stated in above Items 2 and 3 may be exempted.
The coverage of the structure inspection mentioned in the preceding Paragraph 1 shall include inspection of construction methods, material thickness, structure, dimensions, maximum operating pressure, strength calculation review, and arrangement of manhole, cleaning hole, and safety devices, as well as pressure test, adiabatic performance test for the super-low temperature equipment, and materials used for shell body, end plate, pipe sheet and etc., and other inspections as required.
The adiabatic performance test for the super-low temperature equipment required in the preceding paragraph may be recognized by referring to the supporting evidences relevant to the adiabatic performance of the said equipment.

When the inspecting organization carries out structure inspection on special equipment for high-pressure gases, the Manufacture or personnel designated by the Manufacture shall be on the scene and prepare the items shown below.
1. Place the objects of inspection at locations convenient for inspection.
2. Prepare for pressure tests like hydraulic pressure test etc.

The inspecting organization shall stamp the qualification mark (annex 34) on the Detailed List of special equipment for high-pressure gases for special equipment for high-pressure gases qualified in the completion test or deemed qualified according to paragraph 3 of Article 13, after signed by the Inspector, 1 copy of the list shall then be delivered to the applicant, and the qualification mark shall be printed, painted or posted at distinct part of the object inspected for identification.

Upon completion of the installation of the pressure vessel , the employer shall apply for completion inspection at the inspecting organization; those not receiving the completion inspection shall not be used.
When the inspecting organization carries out structure inspection on pressure vessel s, the Manufacture or personnel designated by the Manufacture shall be on the scene

To apply for the Completion Inspection of special equipment for high-pressure gases, the Manufacturer shall fill up and submit an Application Form(Annex 37) for Completion Inspection of the special equipment for high-pressure gases together with the following documents:
1. A specification of the special equipment for high-pressure gases with a stamp thereon to evidence their qualification status of the structure inspection or the re-inspection.
2. An area drawing showing the installation site and the surroundings of the said special equipment for high-pressure gases.
The coverage of the Completion Inspection mentioned in the preceding Paragraph shall include inspections of the quantity and capacity of safety valves, blow-down test, safety devices, pressure indicating devices and other inspections as required.
Once the special equipment has been qualified through the re-inspection process, the Inspecting Organization shall issue a report sheet(Annex 45) to depict the results of the Completion Inspection, and a qualification certificate(Annex 39) with a maximum operation duration of one(1) year.

The employer shall fill the Application for Periodic Inspection of Pressure vessels (Annex 40) 1 month before the expiry of the qualification certificate for the inspection of pressure vessel s and apply for periodic inspection at the inspecting organization.

The periodic inspection of the pressure vessel s shall be carried out more than one time per year.
If any defect is found in the external inspection mentioned in the previous paragraph, the inspecting organization shall, if deeming it necessary, carry out the internal inspection.
Internal inspection of special equipment for high-pressure gases shall be carried out according to the following table:
┌─────┬───────────┬────────────┐
│Equipment │Materials To Be Used │Period │
│Type │ │ │
├─────┼───────────┼────────────┤
│ │1. Austenite stainless│15 years │
│ │ steel │ │
│ │2. Aluminum │ │
│ ├───────────┼────────────┤
│Storage │Nickel steel (2.5 ~ 9 │10 years │
│tank │% ) │ │
│ ├───────────┼────────────┤
│ │Materials equivalent │8 years (for │
│ │to carbon steel plate │low-temperature tank │
│ │for low-temperature │only) │
│ │vessels with tensile ├────────────┤
│ │strength less than │2 years after completion│
│ │58kg/mm2. │Inspection for the first│
│ │ │inspection; 5 years for │
│ │ │the succeeding │
│ │ │inspections. │
│ ├───────────┼────────────┤
│ │Materials equivalent │2 years after completion│
│ │to rolled structure │inspection for the first│
│ │steel for boilers and │inspection; 5 years for │
│ │welded construction │the succeeding │
│ │with tensile strength │inspections. │
│ │less than 58kg/mm2 . │ │
│ ├───────────┼────────────┤
│ │High tensile steel │2 years after completion│
│ │(carbon steel with │inspection for the first│
│ │minimum tensile │inspection; 5 years for │
│ │strength above │the succeeding │
│ │58kg/mm2 )receiving │inspections. │
│ │annealing in the │ │
│ │furnace after welding.│ │
│ ├───────────┼────────────┤
│ │1. High tensile steel │2 years after completion│
│ │ receiving anneal in│inspection for the first│
│ │ the furnace after │inspection; 3 years for │
│ │ welding, not │the succeeding │
│ │ receiving annealing│inspections. │
│ │ in the furnace │ │
│ │ after being │ │
│ │ modified or fixed │ │
│ │ by welding ( │ │
│ │ including welding │ │
│ │ reparation, │ │
│ │ excluding for minor│ │
│ │ repairingt). │ │
│ │2. Other materials. │ │
├─────┼───────────┼────────────┤
│Special │Other materials that │3 years. │
│Equipment │have no concern of │ │
│for High │corrosion and │ │
│Pressure │deterioration. │ │
│Gases ├───────────┼────────────┤
│except for│Other materials │2 years after the │
│Storage │ │completion inspection │
│Tank │ │for the first │
│ │ │inspection; 3 years for │
│ │ │the succeeding │
│ │ │inspections. │
├─────┴───────────┴────────────┤
│Remarks: │
│1.Special equipment for high-pressure gases shall adopt │
│ proper materials according to conditions of usage. │
│2.For storage tanks of low-temperature or ultra-low │
│ temperature high-pressure gases like double-shell │
│ structure, septum type and low-temperature evaporators │
│ that have difficulty in internal inspection, if adopting │
│ non-destructive detection for determination of cracks, │
│ damages and corrosion, the detection shall be carried out │
│ at the pressure 1.5 times of the common pressure for the │
│ pressure test or 1.1 times of the common pressure for │
│ pressure test on the contents in the vessels, and the air │
│ tight test and visual examination with the pressure above │
│ the common pressure shall be carried out as substitute. │
│3.For other than storage tanks that have difficulty in │
│ internal inspection due to size and structure, if │
│ non-destructive inspection and opening inspection │
│ eternally or open inspection on equipment connected with │
│ the special equipment for high-pressure gases with the │
│ same conditions may be confirmed, these inspection can be │
│ carried out as substitutes. │
│4.If the materials used have obvious corrosion or cracks, │
│ the aforesaid period shall be shortened according to │
│ actual situation. │
│5.Special equipment for high-pressure gases shall not be │
│ limited by the period of open inspection, and the visual │
│ examination and air tight tests etc. shall be carried out │
│ every year to determine if there's something abnormal. │
│6.Those called "slight" mean those applicable to "sealing │
│ reparation not requiring limits and conditions for heat │
│ treatment", the period shall be the same to that of the │
│ anneal carried out for elimination of stress in the │
│ furnace after sealing. │
└──────────────────────────────┘

If the internal inspection for the special equipment for high-pressure gases shown below cannot be carried out, the employer shall submit documents including safety and health management status, auto inspection plans and implementation records, photocopy of the qualification specification for the structure inspection of the vessel, detailed structure drawing, production flow chart, emergent treatment plans, auto control system and proposal of substitutes at the inspecting organization for approval of extending the period of the internal inspection or substitution with other means of inspection:
1. Those free of manholes or cannot be equipped with manholes, leaning holes or inspection hole due to structural reasons.
2. Cold boxes, flat low-temperature tanks, oxygen tanks, liquid nitrogen tanks, liquid argon tanks, low-temperature evaporators and other low-temperature or ultra-low-temperature equipment for high-pressure gases.
3. Those with accelerant, molecular sieve or other special contents inside.
4. System equipment that cannot be separated during the continuous production procedure.
5. Diaphragm type tanks or non-corrosive equipment.
6. Others that have difficulty in internal inspection.
If the special equipment for high-pressure gases mentioned in the previous paragraph are attached to Category Ι pressure vessels or boilers, the inspection period shall be extended accordingly.

After accepting the application for internal inspection, the inspecting organization shall notify the employer of the date for the completion inspection for special equipment for high-pressure gases so that they can resume the inside of the special equipment for high-pressure gases to the normal temperature and pressure, discharge the contents and carry out ventilation, air change, cleaning for the special equipment for high-pressure gases and prepare for other necessary proceedings for the periodic inspection.
The internal inspection mentioned in the previous paragraph shall include surface inspection of the special equipment for high-pressure gases and nondestructive inspections for thickness, cracks, distortion and defilement of the special equipment for high-pressure vessels, and determine the pressure test and other necessary inspections to be carried out according to the results of the aforesaid inspections.

The items of external inspection include visual examination, detection of the corrosion, cracks, distortion, defilement and leakage on the surface, if necessary, the non-destructive detection, ultrasonic thickness measurement as fixed points in corrodible areas, accessories and auxiliary devices inspection shall also be carried out. Whenever necessary, proper instruments shall be adopted to detect the inside of the special equipment for high-pressure gases, if something abnormal is found, the internal inspection shall then be carried out.
The ultrasonic thickness measurement stipulated in the previous paragraph may be exempted if there're equipped with integrated heat preservation materials jacket type or having problems like high temperature etc. that leads to difficulty in the measurement
When carrying out the external inspection on special equipment for high-pressure gases, the inspecting organization he shall notify the employer of the date of inspection. During the inspection, the Manufacture or personnel designated by the Manufacture shall be on the scene.

The inspecting organization shall sign on the original qualification certificate of special equipment for high-pressure gases qualified in the periodic inspection and indicate the period of service (1 years at the most).
The Inspector shall fill the Report for the Result of Periodic Inspection for Special Equipment for High-Pressure Gases (Annex 46) after the completion of the periodic inspection and notify the employer of the results.

If the special equipment for high-pressure gases is deemed unqualified in the periodic inspection, the inspector shall record the disqualification in the record of the qualification certificate of the inspection and notify of the improvement; if the situation is serious and has the possibility of resulting in danger, if shall be reported to the inspection organization for limitation of its max pressure or prohibition of use.

In case any of the following situations exists, the Owner/Employer of the special equipment for high-pressure gases shall submit the Inspecting Organization a re-inspection application for the said special equipment:
1. The special equipment to be used is imported from foreign countries.
2. The special equipment to be installed or re-used, has been idle for over one (1) year since the last qualification date of its structure inspection, re-inspection, completion inspection or periodic inspection of said vessel. However, this requirement may be exempted subject to the Inspection Organization's acceptance.
3. The pressure vessel to be re-used, has previously been banned by the Inspection Organization.
4 . To relocate and re-install a special equipment at a place different from its original location.
5. To up-rate the maximum operation pressure.
6. To change the category of the contents.
For those imported special equipment which are documented by the proper corresponding inspection certificates, the Inspecting Organization may grant exemption from all or part of the inspection requirements as stipulated in this Article.

When applying for the reinspection of special equipment for high-pressure gases, the owner or the employer shall fill the Application for reinspection of special equipment for high-pressure gases (Annex 42) and submit the documents shown below:
1. 2 copies of specification of the special equipment for high-pressure gases.
2. Detailed drawing of structure and calculation sheet, each 2 copies. However, those deemed unnecessary by the inspecting organization may be ignored.
3. Aforesaid certificates for qualification of inspections or their photocopies.
Stipulations of Paragraph 3 of Article 126 and Article 127 shall apply to the reinspection.

Once the special equipment for high-pressure gases has been qualified through the re-inspection process, the specification of the said special equipment shall be stamped with a qualification mark(Annex 34) and signed by the inspector of the Inspection Organization.One(1) copy of the above-mentioned specification shall then be delivered to the applicant to serve as an evidence of the qualification status of the re-inspection, for use to proceed with the Completion Inspection. However, for those special equipment which have been either idle for over one(1) year after being qualified by the completion /periodic inspection, or prohibited from operation as respectively stipulated in Items 2 and 3 under Paragraph 1 of Article 138, if the said special equipment which either remain at their original locations or are relocated at other places in the factory, are qualified by the inspection, the Inspecting Organization may add the date and result of the inspection as well as the operation expiration duration with one(1) year as a maximum, on the original qualification certificate.
For those imported the special equipment for high-pressure gases, the qualification mark shall be stamped on the distinct portion of the same after being inspected for identification purpose.

If the alteration of the special equipment for high-pressure gases results in alteration of the towers or tanks, body, end plate, tamina tectalis, pipe sheet, header or reinforcement support, the owner or the employer shall apply at the local inspecting organization for the alteration inspection.
The inspecting organization shall record the date of inspection, altered parts and results of the inspection on the original qualification certificate of the special equipment for high-pressure gases for the special equipment for high-pressure gases qualified in the completion test
If over 1/3 of the towers or tanks, body or header of the special equipment for high-pressure gases is to be altered or the end plate and pipe sheet are to be entirely altered, the alteration shall be carried out according to stipulations of Article 120.

When applying for the alteration inspection of special equipment for high-pressure gases, the Manufacturer shall fill the Application for Alteration Inspection of special equipment for high-pressure gases (Annex 43) and submit it the documents as shown below.
1. Qualification certificate of the type inspection of the manufacturing equipment.
2. 2 copies of specification of the special equipment for high-pressure gases.
3. Drawings of the altered parts.
4. Detailed structure drawing and strength calculation sheet, each 2 copies. However, this may be ignored if the inspecting organization deems it unnecessary.
5. Aforesaid certificates for qualification of inspections or their photocopies.
Stipulations of Paragraph 3 of Article 126 and Article 127 shall apply to the inspection.

When considering necessary before carrying out the construction inspection, completion inspection, periodic inspection, reinspection or alteration inspection, the inspecting organization may request the Owner, Employer or their designated agent to the measures shown below:
1. Remove all or part of the covering on the inspected object.
2. Pull out the rivet or pipe.
3. Drill holes on the plate or pipes.
4. Other proceedings considered necessary.
For subparagraph 3 of the previous paragraph, the applicant shall apply for non-destructive inspection and submit supporting documents.

Before manufacturing or modifying vessels for high-pressure gases, the Manufacturer shall fill up the type inspection application form (Annex 31) and submit the same along with the documents listed below tothe local inspecting organization:
1. Type, detailed structure drawings and strength calculation sheet for the vessel for high-pressure gases applying for inspection.
2. Type, capacity and quantity of the manufacturing and inspection equipment.
3. Brief description ofeducational background and working experience of the chief designer.
4. Brief description of educational background and working experience of the construction director.
5. Qualification requirements and number of constructors.
6. Qualification certificate of the welders, specification of welding procedures and qualification records of the welding procedures.
Any alteration of the equipment stipulated 2 or change of personnel stipulated in Items 3 and 4 of the preceding Paragraph shall be reported to the local inspecting organization.
The inspecting organization shall issue the Qualification Certificate of Type Inspection for Manufacturing Equipment (Annex 2) for qualifiers in the type inspection as stipulated in Paragraph 1.
The manufacture or modification shall prohibited from implementationt without passing the inspection. However, this shall not apply to the case where the types and conditions that have already passed the type inspection.

For the manufacturing of vessels for high-pressure gases, quality control, quality assurance measures shall be taken, and the equipment of personnel shall be in accordance with the stipulations as shown below except those apply to Article 96.
1. Seamless vessel:
(1) Forging or molding devices.
(2) Those manufactured by connecting the bottoms: bottom-connecting devices.
(3) Those made of heat processed materials: Anneal and temperature measurement devices that can measure the internal temperature of the anneal.
(4) Washing devices.
(5) Thickness confirming instruments.
2. Vessels other than the seamless vessels, , shall be equipped with the necessary devices required for use in manufacture of the vessels according to the stipulations as shown below, besides those mentioned in preceding Items 3 through5:
(1) Forming devices.
(2) Welding or hard brazing devices.
(3) Anti-corrosiont coating equipment. But this shall not apply to the case when using stainless steel, aluminum alloy or non-corrosive materials for manufacturing vessels used for containing liquefied petroleum gas.

Manufacturers of vessels for high-pressure gases manufactured by sealing shall apply for sealing inspection at local inspecting organization before the construction. However, this limitation shall not apply to those meeting any of the cases shown below:
1. Auxiliary equipment or those only weldingg stress parts without stress under compression.
2. Those only sealing the parts shown below:
(1) Circumferential joints of pipes with inside diameter less than 300mm.
(2) Reinforcement materials, pipes, pipe table, flanges and valve bases etc. sealed on the body or the end plates.
(3) welding supporting racks or other objects withstanding no pressure on the body or the end plates.
(4) Leakproof welding.
The welding inspection items shall include material inspection, surface inspection, mechanical performance test for welded parts, radiation inspection, heat treatment inspection and other necessary inspections.

When applying for welding inspection of pressure vessel s, the Manufacturer shall fill up the Application Form for Welding Inspection of Pressure vessel s (Annex 32) and submit the documents shown below:
1. One (1) copy of Material certificate.
2. Two (2) copies of specification of welding (Annex 33) and one (1) copy of construction locations classification map.
3. Two (2) copies of detailed structure drawing and strength calculation sheet.
4. Welding technician certificate of sealing constructors.
5. One (1) cope each of the qualification certificate for the type inspection of manufacturing facilities, welding procedure and welding procedure qualification examination records.

The welding inspection of vessels for high-pressure gases, shall be carried out at site in accordance with the required inspection items after the documents submitted bythe Manufacturer have been successfully examined by the inspecting organization.
When carrying out the site inspection, the Manufacturer or the personnel designated by the Manufacture shall be present on the scene in body and prepare the itemsshown below ahead of time before the inspection：
1. Test pieces used for testing mechanical performances.
2. Readiness for performing radiation inspection.

After being qualified by the welding inspection, the welding specification for the vessels for high-pressure gases shall be stamped with the qualification mark (annex 34) and signed by the Inspector thereon. s The inspecting organization shall then deliver one ( 1 ) copy of the welding specification to the applicant. The qualification mark shall be printed, painted or posted at distinct locationt of the inspected for identification.

Upon completion of the body of the vessel for high-pressure gases, the Upon completion of the vessels for high pressure gages, the Manufacturer shall apply for construction inspection at the local inspecting organization.

When applying for the construction inspection of vessels for high-pressure gases, the Manufacturer shall fill up the Application Form for Construction Inspection pressure vessels (Annex 35) and submit the same along withthe documents as shown below:
1. Two (2) copies of specification of the vessel for high-pressure gases (Annex 44)
2. Two (2) copies each of the detailed construction drawings and strength calculation sheets.
3. Welding check list of the welding inspection, stamped with inspection qualification mark thereon for those manufactured by welding method.
4. Qualification certificate of the type inspection for those manufactured by riveting method.
In case the welding inspection and the construction inspection are to be carried out by the same inspecting organization, the documents listed under Items 2 and 3 in the preceding Paragraph may be exempted for submittal.
The construction inspection stipulated in preceding Paragraph 1 consists of construction methods, material thickness, structure, dimensions, maximum operating pressure, strength calculation review as well as air tight test, pressure test, safety devices, accessory parts and devices, as well as adiabatic performance test of the ultra-low-temperature equipment andother inspections as required.

When the inspecting organization is carrying out the construction inspection of the vessels for high-pressure gases, the Manufacture or the personnel designated by the Manufacture shall be on the scene in body and prepare the items shown below in advance:
1. To place the objects of inspection at the location convenient for inspection.
2. To prepare for pressure tests including the hydraulic pressure test.

The inspecting organization shall issue the qualification certification for the inspection (Annex 39, 39-1) and stamp the qualification mark (annex 34) on the Detailed List of vessels for high-pressure gases for vessels for high-pressure gases qualified in the structure test, after signed by the Inspector, 1 copy of the list shall then be delivered to the applicant, and the qualification mark shall be printed, painted or posted at distinct part of the object inspected for identification.
However, the qualification certificate for vessels for high-pressure gases mounted on vehicles shall be issued after they are assembled and fixed on the chassis. The period of validation for the qualification certificate of inspection mentioned in the previous subparagraph shall be in accordance with the stipulations in Article 155.

The employer shall fill the Application for Periodic Inspection of Vessels for high-pressure gases (Annex 40) 1 month before the expiry of the qualification certificate for the inspection of vessles for high-pressure gases and apply for periodic inspection at the inspecting organization.

The periodic inspection of the vessels for high-pressure gases shall be performed both internally and externally in accordance with the stipulations as shown below:
1. Internal inspection:
(1) Shall be performed once per five (5) years for those having been qualified by the structure inspection for not exceeding fifteen (15) years elapsed from the approval date of the said inspection; while once per two (2) years for those qualified for more than fifteen(15) years but not exceeding twenty (20) years; and once per year for those qualified for more than twenty (20) years.
(2) Shall be performed once per five (5) years for those seamless high pressure vessels.
2. External inspection:
(1) Shall be performed once per year for high-pressure vessels mounted on vehicles.
(2) Shall be performed once per five(5) years for those seamless high pressure vessels not mounted on vehicles.
(3) The inspection frequency for those high pressure vessels which do not fall within the categories as specified in the above Sub-items(1) and(2) shall be performed in accordance with the requirements as stipulated in the preceding Paragraph 1.
In case, for those imported vessels for high pressure gases, which have not performed the structure inspection, their manufactured date shall be used as the starting date to count the time duration stated in the preceding Paragraph 1.

If the internal inspection for the following vessels for high-pressure gases cannot be carried out, the Employer shall submit the documents ( including the safety and health management status, the self- inspection plans and their implementation records, detailed condtruction drawing, emergent reponse plans, safety protection devices and the proposal of alternative inspection methods ) to the inspecting organization three (3) months ahead of time before the expiration date of the qualification certificate of inspection for approval in forms of either by extending the time limit of the internal inspection, or by substituting with other means of inspection:
1. Those are free of manholes or cannot be equipped with manholes, cleaning holes or inspection holes either according to related stipulations, or due to restriction from constructional reasons.
2. Vessels used for low-temperature or ultra-low-temperature high-pressure gases.
3. Vessels of Jacket type or others with no concern of corrosion.
4. Other vessels that have difficulty in performing internal inspection.

To proceed with the internal inspection after receipt of the application for periodic inspection, the inspecting organization shall notify the Employer of the inspection date so to allow for recovering the inside of the special equipment for high-pressure gases to the normal temperature and pressure status, by discharging their contents, as well as carrying out ventilation, air change, cleaning works and other required preparation tasks for the periodic inspection.

The coverage of the external inspection of the vessels for high pressure gases shall include the visual examination, detection of the external corrosion, cracks, distortion, dirty and leakage, as well as the necessary non-destructive examination and the ultrasonic measurement of thickness at the specific areas vulnerable to corrosion, as required. Whenever any abnormal phenomenon is found, an internal inspection shall be carried out subsequently.
The coverage of the internal inspection of the vessels for high pressure gases shall include surface inspection, detection of thickness, corrosion, cracks, distortion, dirty and etc., as well as the necessary non-destructive examination whose results will serve as a basis to justify the necessity for performing the pressure test and other inspections, as required.
As an alternative, the internal inspection of the vessels for high pressure low-temperature or super-low temperature gases may be replaced by applying a pressure test either at a pressure of above 1.5 times the normal pressure, or above 1.1 times of the normal pressure with contents in the vessels, and followed by an air tight test at a pressure above the normal pressure, as well as a visual examination and etc..
To proceed with the necessary inspection of vessels for high-pressure gases as specified in the preceding Paragraph 2, those welded vessels shall receive an examination of their anti-corrosive coatings; while those pressure vessels for super-low temperature gases shall go through an air tight test.
The requirements for the ultrasonic measurement of thickness stipulated in the preceding Paragraph 1 may be exempted, provided that the existence of the one piece /jacket type insulations or super low temperature and etc.leads to a real difficulty in carrying out the said thickness measurement.
In process of performing the internal/ external inspection of the vessels for high-pressure gases, as required, the Inspecting Organization shall notify the employer of the inspection date.The Employer or his designated personnel shall be present in person at the job site in the course of inspection.
With respect to those imported vessels for high pressure gages, which are documented with qualified certificates issued by foreign countries, the Inspection Organization may consider exempting all or part of the requirements of inspection as stipulated in the preceding six(6) paragraphs based on the adequacy of the contents of the inspection previously performed.

After the vessels for high-pressure gases have been qualified by the periodic inspection in compliance with the requirements as stipulated in the preceding Article 155, the original qualification certificate of said vessels shall be signed and indicated thereon an extended operation duration with five(5) years as the maximum by the Inspecting Organization. Nevertheless, an new qualification certificate shall be re-issued for those tanked type vessels which are fixed on the vehicles.
Having completed the periodic inspection of the vessels for high pressure gases as per the preceding Paragraph 1, the Inspector shall fill up a periodic inspection report(Annex 46) to file the results of said periodic inspection, and notify the same to the Employer.

If the vessel of high-pressure gases is deemed unqualified in the periodic inspection, the inspector shall record the disqualification in the record of the qualification certificate of the inspection and notify of the improvement; if the situation is serious and has the possibility of resulting in danger, if shall be reported to the inspection organization for limitation of its max pressure or prohibition of use.

In case any of the following situations exists, the Owner/ Employer of the vessels for high pressure gases shall submit the Inspecting Organization an application for re-inspection:
1. The vessel to be used is imported from foreign countries.
2. The vessel to be installed or re-used, has been idle for over one (1) year since the last qualification date of the structure inspection, re-inspection, completion inspection or periodic inspection of said vessel. However,the above requirements may be exempted for those vessels approved by the Inspection Organization.
3. The vessel intended to be re-used, has previously been prohibited by the Inspection Organization.
4. The maximum bottling pressure is intended to be up-rated.
5. The category of the bottled gases is intended to be changed.
For those imported vessels which are documented by proper supporting inspection certificates, the Inspecting Organization may grant a full or partial exemption from the requirements as stipulated in this Article.

When applying for the reinspection of special equipment for high-pressure gases, the Owner or the Employer shall fill up the Application Form for Re-inspection of Vessels of High-Pressure Gases (Annex 42) and submit the documents shown below:
1. Two (2) copies of specification of the vessels of high-pressure gases.
2. Two (2) copies eachof the detailed drawings of structure and calculation sheets. However, those documents to be deemed unnecessary by the inspecting organization may be exempted.
3. Original certificates for qualification of inspections or their photocopies.
The requirements Stipulated in Paragraph 3 of Articles 151 and 152 shall apply mutatis mutandis to the re-inspection.

The inspection organization shall issue the qualification certificate for the special equipment for high-pressure gases, which have been qualified by re-inspection, and remark the operation validity date thereon accordingly. But for those qualified special equipment categorized under Items 2 or 3 of Article 160, the inspection date, inspection results and the extended operation validity date may be remarked on their original qualification certificate instead.
The requirements stipulated in Article 155 apply mutatis mutandis to the validity time limit with the maximum duration of five (5) years.
For those imported vessels equipment for high-pressure gases, the qualification mark shall be stamped on the distinct portion of the same after being inspected for identification purpose.