ASTM D6166-97 - 10.8.1997
 
1. Scope

1.1 This test method covers the quantitative determination of the color of clear, yellow/brown, liquid materials using color measuring instruments. The results may be invalid if other materials are used. The test uses the Gardner color scale described in Test Method D 1544. This test method applies to naval stores products including tall oil, tall oil fatty acids, rosin, and related products.

1.2 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.

 
2. Referenced Documents

E691-23

Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

E308-22

Standard Practice for Computing the Colors of Objects by Using the CIE System

E177-26a

Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods (Includes all amendments and changes 5/14/2026).

D1544-04(2023)

Standard Test Method for Color of Transparent Liquids (Gardner Color Scale)