SUBTITLE B: AIR POLLUTION
CHAPTER I: POLLUTION CONTROL BOARD
SUBCHAPTER c: EMISSIONS STANDARDS AND LIMITATIONS FOR STATIONARY SOURCES
PART 219 ORGANIC MATERIAL EMISSION STANDARDS AND LIMITATIONS FOR THE METRO EAST AREA
SECTION 219.110 VAPOR PRESSURE OF ORGANIC MATERIAL OR SOLVENT
Section 219.110 Vapor Pressure of Organic Material or Solvent
a) If the organic material or solvent consists of only a single compound, the vapor pressure must be determined by ASTM Method D2879-86 (incorporated by reference in Section 219.112 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) Except as provided in subsection (d), if the organic material or solvent is in a mixture made up of both organic material compounds and compounds which are not organic material, the vapor pressure must be determined by the following equation:
where:
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Pom |
= |
Total vapor pressure of the portion of the mixture which is composed of organic material; |
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n |
= |
Number of organic material components in the mixture; |
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i |
= |
Subscript denoting an individual component; |
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Pi |
= |
Vapor pressure of an organic material component determined in accordance with subsection (a); |
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Xi |
= |
Mole fraction of the organic material component of the total organic mixture. |
c) If the organic material or solvent is in a mixture made up only of organic material compounds, the vapor pressure must be determined by ASTM Method D2879-86 (incorporated by reference in Section 219.112) or by the above equation.
d) For hand-wipe cleaning solvents used at aerospace facilities subject to Section 219.219(g)(2), the composite vapor pressure of a cleaning solvent consisting of multiple components must be determined by the following equation:
where:
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PPc |
= |
Composite vapor pressure of the cleaning solvent in mmHg at 20 °C; |
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n |
= |
Number of components in the cleaning solvent; |
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i |
= |
Subscript denoting an individual VOM-containing component; |
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j |
= |
Subscript denoting an individual non-VOM component; |
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Wi |
= |
Weight of a VOM-containing component in grams; |
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Wj |
= |
Weight of a non-VOM component in grams; |
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Ww |
= |
Weight of water in grams; |
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MWi |
= |
Molecular weight a VOM-containing component in grams per gram-mole; |
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MWj |
= |
Molecular weight of a non-VOM component in grams per gram-mole |
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MWw |
= |
Molecular weight of water in grams per gram-mole; |
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VPi |
= |
Vapor pressure of a VOM-containing component in mmHg at 20 °C. |
(Source: Amended at 45 Ill. Reg. 3553, effective March 4, 2021)