ASTM-D6093 › Standard Test Method for Percent Volume Nonvolatile Matter in Clear or Pigmented Coatings Using a Helium Gas Pycnometer
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Scope
1.1 This test method covers the determination of the percent volume nonvolatile matter of a variety of clear and pigmented coatings. The approach used should provide faster and more accurate results than the use of liquid displacement technique in Test Method D 2697, particularly for coatings that are difficult to wet or that contain voids, cracks or other defects. The improvement in accuracy stems from the superior ability of helium gas under pressure to penetrate very small pores and surface irregularities in dried films. This provides a more accurate determination of void volumes than can be obtained via liquid displacement.
1.2 The technique will provide results under the following constraints:
1.2.1 The stability of the helium gas pycnometeris greater than +/- 0.005cm3
1.2.2 Test specimen weights are greater than 1 g.
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
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.
Keywords
coatings; helium gas pycnometer; paint film density, coverage; percent volume nonvolatile matter; VOC; volatile organic compound content
To find similar documents by ASTM Volume:
06.01 (Paint -- Tests for Chemical, Physical, and Optical Properties; Appearance)
To find similar documents by classification:
25.220.01 (Surface treatment and coating in general)
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Document Number
ASTM-D6093-97R22
Revision Level
1997 R22 EDITION
Status
Current
Modification Type
New
Publication Date
Dec. 9, 2022
Document Type
Test Method
Page Count
4 pages
Committee Number
D01.21