ASTM D 6531 - 00 (Reapproved 2005) Standard Test Method for Relative Tinting Strength of Aqueous Ink Systems by Instrumental Measurement

American Society for Testing and Materials (ASTM). Current edition approved Sept. 1, 2005. Published September 2005. Originally approved in 2000. Last previous edition approved in 2000 as D 6531 – 00. 3 p. This test method covers the procedure for determining the relative tinting strength of waterbased ink systems using a computer-aided spectrophotometer.
This test method is applicable to waterbased printing inks and bases to be used primarily in flexographic and gravure printing applications.