Active Standard ASTM D156 | Developed by Subcommittee: D02.05
Book of Standards Volume: 05.01
Historical (view previous versions of standard)
Significance and Use
5.1 Determination of the color of petroleum products is used mainly for manufacturing control purposes and is an important quality characteristic since color is readily observed by the user of the product. In some cases the color may serve as an indication of the degree of refinement of the material. When the color range of a particular product is known, a variation outside the established range can indicate possible contamination with another product. However, color is not always a reliable guide to product quality and should not be used indiscriminately in product specifications.
1.1 This test method covers the determination of the color of refined oils such as undyed motor and aviation gasoline, jet propulsion fuels, naphthas and kerosine, and, in addition, petroleum waxes and pharmaceutical white oils.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D938 Test Method for Congealing Point of Petroleum Waxes, Including Petrolatum
D1500 Test Method for ASTM Color of Petroleum Products (ASTM Color Scale)
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
ICS Number Code 75.080 (Petroleum products in general)