SUBTITLE B: AIR POLLUTION
CHAPTER I: POLLUTION CONTROL BOARD
SUBCHAPTER c: EMISSIONS STANDARDS AND LIMITATIONS FOR STATIONARY SOURCES
PART 218 ORGANIC MATERIAL EMISSION STANDARDS AND LIMITATIONS FOR THE CHICAGO AREA
SECTION 218.111 VAPOR PRESSURE OF VOLATILE ORGANIC MATERIAL
Section 218.111 Vapor Pressure of Volatile Organic Material
a) If the VOM consists of only a single compound, the vapor pressure shall be determined by ASTM Method D2879-86 (incorporated by reference in Section 218.112 of this Part) or the vapor pressure may be obtained from a publication such as: Boublik, T., V. Fried and E. Hala, "The Vapor Pressure of Pure Substances," Elsevier Scientific Publishing Co., New York (1973); Perry's Chemical Engineer's Handbook, McGraw-Hill Book Company (1984); CRC Handbook of Chemistry and Physics, Chemical Rubber Publishing Company (1986-87); and Lange's Handbook of Chemistry, John A. Dean, editor, McGraw-Hill Book Company (1985).
b) If the VOM is in a mixture made up of both VOM compounds and compounds which are not VOM, the vapor pressure shall be determined by the following equation:
where:
|
Pvom |
= |
Total vapor pressure of the portion of the mixture which is composed of VOM; |
|
n |
= |
Number of VOM components in the mixture; |
|
i |
= |
Subscript denoting an individual component; |
|
Pi |
= |
Vapor pressure of a VOM component determined in accordance with subsection (a) of this Section; |
|
Xi |
= |
Mole fraction of the VOM component of the total organic mixture. |
c) If the VOM is in a mixture made up of only VOM compounds, the vapor pressure shall be determined by ASTM Method D2879-86 (incorporated by reference in Section 218.112 of this Part) or by the above equation.
(Source: Amended at 20 Ill. Reg. 14428, effective October 17, 1996)