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 218.109 VAPOR PRESSURE OF VOLATILE ORGANIC LIQUIDS
Section 218.109 Vapor Pressure of Volatile Organic Liquids
a) If the VOL 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 VOL is a mixture, the vapor pressure shall be determined by ASTM Method D2879-86 (incorporated by reference in Section 218.112) or by the following equation:
where:
|
Pvol |
= |
Total vapor pressure of the mixture; |
|
n |
= |
Number of components in the mixture; |
|
i |
= |
Subscript denoting an individual component; |
|
Pi |
= |
Vapor pressure of a component determined in accordance with subsection (a) of this Section; |
|
Xi |
= |
Mole fraction of the component in the total mixture. |
(Source: Amended at 17 Ill. Reg. 16636, effective September 27, 1993)