Significance and Use
Use of 1,1,1-trichloroethane and dichloromethane, which do not measurably contribute to the atmospheric oxidant level, is a way for industry to meet government or other regulations on volatile organic compounds. This test method is designed to determine the content of these halohydrocarbon solvents in paints and coatings. That content can subsequently be used in calculating the volatile organic compound content of a coating.
1.1 This test method covers the determination of total amount of dichloromethane or 1,1,1-trichloroethane, or both, in paints and coatings. It has been evaluated for cellulose nitrate, alkyd, vinyl, and styrene-butadiene systems. It has not yet been evaluated for other formulations, but is believed to be applicable. The established working range of this test method is from 31 to 65 % for 1,1,1-trichloroethane and 32 to 78 % for dichloromethane. There is no reason to believe it will not work outside of these ranges. The presence of 1-propanol in paints and coatings requires the use of a different internal standard. (See also Practice E 260.)
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements are given in Section 7.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
E180 Practice for Determining the Precision of ASTM Methods for Analysis and Testing of Industrial and Specialty Chemicals
E260 Practice for Packed Column Gas Chromatography
chlorinated hydrocarbons in paints by gas chromatograph; dichloromethane, in paints; exempted solvent in paints; gas chromatograph, halohydrocarbon; 1,1,1-trichloroethane, in paints; Gas chromatography (GC)--paints/related coatings/materials; Solvents--paints/related coatings/materials; Volatile organic compounds (VOC)--paints/related coatings; Alkyds/alkyd materials/applications; Cellulose and cellulose derivatives; Chlorinated hydrocarbons; Coatings (paint/related applications); Dichloromethane; Exempted solvents; Hydrocarbons; Methylene chloride (MeCl); Paint testing; Styrene-butadiene coatings systems;
ICS Number Code 87.040 (Paints and varnishes)
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Citing ASTM Standards
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