ASTM D 3718 - 85a (Reapproved 2005) Standard Test Method for Low Concentrations of Chromium in Paint by Atomic Absorption Spectroscopy

American Society for Testing and Materials (ASTM). Current edition approved Jan. 1, 2005. Published February 2005. Originally approved in 1978. Last previous edition approved in 1999 as D 3718 – 85a (1999). 4 p. This test method covers the determination of the content of chromium (including chromium oxide) in the range between 0.005 and 1.0 % present in the solids of liquid coatings or in dried films obtained from previously coated substrates. There is no reason to believe that higher levels could not be determined by this test method, provided that appropriate dilutions and adjustments in specimen size and reagent quantities are made.