Extract the vehicle from the pigment as in Method 21.1. Retain and combine the extract and washings, place in a
500 mL Erlenmeyer standard taper-jointed flask, and distill off most of the solvent.
CGSB 1-GP-71 METH 50.13-1980 history
1980CGSB 1-GP-71 METH 50.13-1980 Methods of Testing Paints and Pigments Pigment Analysis Red Lead with Zinc Chromate Yellow and Iron Oxide