Terms and Symbols used in these Standards are defined as follows:
I. “Peripheral boundary” means the boundary line marking the use or management of public or private premises.
II. “mg” means milligram, equivalent to 0.001 grams.
III. “μg” means microgram, equivalent to 0.001 milligrams.
IV. “K” means Kelvin absolute temperature scale, where K=273+°C.
V. “Nm3” means 273 degrees Kelvin (273 K) and a volume of one atmosphere per cubic meter.
VI. “ppm” means parts per million.
VII. “q” means the “highest permissible emissions quantity per unit time” of each pollutant from each emissions pipe unit in a single pollution source, measured in grams per second (g/s).
VIII. “a1” and “a2” mean the conversion constants for each pollutant.
IX. “k” means the diffusion coefficient for pollutant emissions, measured in grams per second per square meter (g/s‧m2).
X. “h” means the actual height of the outlet of the emissions pipe, measured in meters (m).
XI. “△h” means the height of smoke plume from the outlet of the emissions pipe, measured in meters (m).
XII. “he” means the effective height of outlet of emissions pipe he=h+△h, measured in meters (m).
XIII. “Qh” means the heat emissions rate from a emissions pipe exhaust, measured in calories per second (cal/s).
XIV. “Vs:” means emissions pipe outlet exhaust speed, measured in meters per second (m/s).
XV. “ds” means the internal diameter of the emissions pipe outlet, measured in meters per second (m).
XVI. “ρ” means exhaust density, measured in grams per liter (g/l).
XVII. “Cp” means specific heat at constant pressure from exhaust, measured in calories per gram degree Kelvin (cal/g‧K).
XVIII. “Ts” means exhaust temperature at the exhaust pipe outlet, measured in Kelvin (K).
XIX. “T” means ambient temperature surrounding the emissions pipe outlet, measured in degrees Kelvin (K).
XX. “U” means annual average wind speed at the height of the emissions pipe outlet, measured in meters per second (m/s)U =U0 (h/10)0.2
XXI. “U” means average wind speeds at 10 meters high from the ground surface, measured in meters per second (m/s). These standards are based on an average wind speed of 3.5 meters per second (m/s) as the calculation reference standard.
XXII. “Q” means displacement that has either undergone calibration or does not need calibration, measured in cubic meters per minute (Nm3/min).
XXIII. “Qs” means the measured displacement derived from testing methods, measured in cubic meters per minute (Nm3/min).
XXIV. “C” means concentration of pollutant emissions that has either undergone calibration or does not need calibration, measured in ppm or mg /Nm3.
XXV. “Cs” means pollution emissions concentration based on testing methods, measured in ppm or mg /Nm3.
XXVI. “On” means standard percentage value of oxygen that is contained in exhaust, measured in %.
XXVII. “Os” means the actual testing value percentages of oxygen content in exhaust. If value exceeds 20%, then value shall be calculated as 20%.