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 D1544. This test method applies to pine chemical products including tall oil rosin, gum rosin, wood rosin and related products.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
instrumental Gardner color; rosin; tall oil; tall oil fatty acids
New Standard drafted to cover the determination of the color of rosin in solution by the instrumental determination of Gardner color as outlined in ILS# 1818
The title and scope are in draft form and are under development within this ASTM Committee.
Date Initiated: 10-28-2022
Technical Contact: Phillip Hurd