ASTM D7768 - 12

    Standard Test Method for Speciated Organic Volatile Content of Waterborne Multi-Component Coatings by Gas Chromatography

    Active Standard ASTM D7768 | Developed by Subcommittee: D01.21

    Book of Standards Volume: 06.01


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    Significance and Use

    5.1 In using the methods of Practice D3960 to measure the VOC content of coatings, precision tends to be poor for waterborne coatings because the VOC weight fraction is determined indirectly. The present method first identifies and then quantifies the individual VOCs directly. The total VOC weight fraction is obtained by adding the individual weight fraction values.

    1. Scope

    1.1 This test method is for the determination of the individual organic volatile compounds of waterborne multi-component coatings using gas chromatography (see Note 1).

    1.2 The method has also been used successfully to determine the speciated volatile organic content of solvent-borne multi-component coatings. Work is continuing to develop this aspect of the method and will be added to the method at a later date.

    Note 1Currently there are no methods for the direct analysis of the VOC content of waterborne multi-component coatings. The VOC content of solvent-borne multi-component coatings is determined directly by a simple weight loss determination of the mixed components (Test Method D2369).

    1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

    1.4 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. Some specific hazards statements are given in Section 7 on Hazards.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D1475 Test Method For Density of Liquid Coatings, Inks, and Related Products

    D2369 Test Method for Volatile Content of Coatings

    D3792 Test Method for Water Content of Coatings by Direct Injection Into a Gas Chromatograph

    D3925 Practice for Sampling Liquid Paints and Related Pigmented Coatings

    D3960 Practice for Determining Volatile Organic Compound (VOC) Content of Paints and Related Coatings

    D4017 Test Method for Water in Paints and Paint Materials by Karl Fischer Method

    D6133 Test Method for Acetone, p-Chlorobenzotrifluoride, Methyl Acetate or t-Butyl Acetate Content of Solventborne and Waterborne Paints, Coatings, Resins, and Raw Materials by Direct Injection Into a Gas Chromatograph

    D7358 Test Method for Water Content of Paints by Quantitative Calcium Hydride Reaction Test Kit

    E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods

    E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method


    ICS Code

    ICS Number Code 87.040 (Paints and varnishes)

    UNSPSC Code

    UNSPSC Code 31211500(Paints and primers)


    DOI: 10.1520/D7768-12

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