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Scope

1.1 This test method describes a procedure for the determination of the weight percent volatile content of solventborne and waterborne coatings. Test specimens are heated at 110 ± 5°C for 60 min.

Note 1—The coatings used in these round-robin studies represented air-dried, air-dried oxidizing, heat-cured baking systems, and also included multicomponent paint systems.

1.2 Sixty minutes at 110 ± 5°C is a general purpose test method based on the precision obtained with both solventborne and waterborne coatings (see Section 9).

1.3 This test method is viable for coatings wherein one or more parts may, at ambient conditions, contain liquid coreactants that are volatile until a chemical reaction has occurred with another component of the multi-package system.

Note 2—Committee D01 has run round-robin studies on volatiles of multicomponent paint systems. The only change in procedure is to premix the weighed components in the correct proportions and allow the specimens to stand at room temperature for 1 h prior to placing them into the oven.

Significance and Use

This test method is the procedure of choice for determining volatiles in coatings for the purpose of calculating the volatile organic content in coatings under specified test conditions. The weight percent solids content (nonvolatile matter) may be determined by difference. This information is useful to the paint producer and user and to environmental interests for determining the volatiles emitted by coatings.

Keywords

multicomponent paints; nonvolatile determination; VOC baking temperature; VOC in paints; volatile determination; volatiles; Latex paints; Multicomponent paints; Nonvolatile matter content--paints/related coatings/materials; Paint testing; Solventborne paints/coatings; VOC calculation; Volatile matter content--paints/related coatings/materials; Volatile organic compounds (VOC)--paints/related coatings; ICS Number Code 87.040 (Paints and varnishes)

To find similar documents by ASTM Volume:

06.01 (Paint -- Tests for Chemical, Physical, and Optical Properties; Appearance)

To find similar documents by classification:

87.040 (Paints and varnishes Including coating powders, paint coatings and protective paint systems)

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