Ill. Admin. Code tit. 35 § 218.109
Current through Register Vol. 48, No. 49, December 6, 2024
Section 218.109 - Vapor Pressure of Volatile Organic Liquidsa) 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: Image
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. |
Ill. Admin. Code tit. 35, § 218.109
Amended at 17 Ill. Reg. 16636, effective September 27, 1993