Significance and Use
4.1 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 may 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 visual determination of the color of a wide variety of petroleum products, such as lubricating oils, heating oils, diesel fuel oils, and petroleum waxes.
—Test Method D156 is applicable to refined products that have an ASTM color lighter than 0.5.
1.2 This test method reports results specific to the test method and recorded as “ASTM Color.”
1.3 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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D156 Test Method for Saybolt Color of Petroleum Products (Saybolt Chromometer Method)
D938 Test Method for Congealing Point of Petroleum Waxes, Including Petrolatum
D2500 Test Method for Cloud Point of Petroleum Products
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
ASTM Color; color; petroleum products;
ICS Number Code 17.180.20 (Colours and measurement of light); 75.080 (Petroleum products in general)
ASTM International is a member of CrossRef.
Citing ASTM Standards
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