ASTM D5386 Test Method for Color of Liquids Using Tristimulus Colorimetry
1. Scope
1.1 This test method covers an instrumental method for the CIE (Commission International de l'Eclairage) tristimulus measurement of the color of near-clear liquid samples. The measurement is converted to color ratings in the platinum-cobalt system.
1.2 This test method has been found applicable to the color measurement of clear, liquid samples, free of haze, with nominal platinum cobalt color values in the 0 to 30 range. It is applicable to nonfluorescent liquids with light absorption characteristics similar to those of the platinum cobalt color standard solutions. Test Methods D1686, D2108, and E 450 deal with the visual and instrumental measurement of near-clear liquids.
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
2.1 ASTM Standards:
D1193 Specification for Reagent Water
D1209 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)
D1686 Test Method for Color of Solid Aromatic Hydrocarbons and Related Materials in the Molten State (Platinum-Cobalt Scale)
D2108 Test Method for Color of Halogenated Organic Solvents and Their Admixtures (Platinum-Cobalt Scale)
D3437 Practice for Sampling and Handling Liquid Cyclic Products
E 179 Guide for Selection of Geometric Conditions for Measurement of Reflection and Transmission Properties of Materials
E 308 Practice for Computing the Colors of Objects by Using the CIE System
E 313 Practice for Calculating Yellowness and Whiteness Indices from Instrumentally Measured Color Coordinates
E 450 Method for Measurement of Color of Low-Colored Clear Liquids Using the Hunterlab Color Difference Meter
E 691 Practice for Conducting an Interlaboratory Study to Determine the Precision of Test Methods
2.2 Other Document:
OSHA Regulations, 29 CFR, paragraphs 1910.1000 and 1910.1200
