ASTM D 6438 - 05 Standard Test Method for Acetone, Methyl Acetate, and Parachlorobenzotrifluoride Content of Paints, and Coatings by Solid Phase Microextraction-Gas Chromatography

American Society for Testing and Materials (ASTM). Current edition approved July 1, 2005. Published July 2005. Originally approved in 1999. Last previous edition approved in 1999 as D 6438 – 99. 4 p. This test method is for the determination of acetone, methyl acetate, or parachlorobenzotrifluoride (PCBTF), or combination of any of the three, in paints and coatings, by solid phase microextraction (SPME) headspace sampling, and subsequent injection into a gas chromatograph. It has been evaluated for cellulose nitrate, acrylic, and urethane solventborne systems. The established working range of this test method is: acetone, 28 to 90 %; methyl acetate, 12 to 22 %;
parachlorobenzotrifluoride, 10 to 17 %. There is no reason to believe that it will not work outside these ranges. A minor modification of this test method would make it suitable for the analysis of the same analytes in water-borne coatings.