ASTM D126-87 (2023) Standard Test Method for the Analysis of Yellow, Orange, and Green Pigments Containing Lead Chromate and Chromium Oxide Green specifies standardized test methods for the analysis of yellow, orange, and green pigments containing lead chromate and chromium oxide green. This standard provides pigment manufacturers and quality control laboratories with a method for determining the composition of these specific pigments, ensuring that the chemical composition of the pigment meets mass requirements. The test method includes steps for determining the content and chemical structure of lead chromate and chromium oxide green, designed to ensure the accuracy and Stability of the pigment, and is suitable for the manufacture and inspection of paints, coatings, and Miscellaneous pigment products.