ASTM D2985 / D2985M - 92(2011)e1
Standard Test Method for Color of Asbestos
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Significance and Use
The color of asbestos is of commercial significance when it is to be incorporated into products, the color of which is affected by the color of the asbestos, and for which color specifications must be met.
Whiteness is required of asbestos for use in white or pale-colored products.
Yellowness is significant in asbestos for use in pastel-colored products where discolored asbestos may prevent attainment of certain shades and hues detector.
1. Scope
1.1 This test method covers the determination of color, whiteness, and yellowness of asbestos by means of a photoelectric reflectometer.
1.2 The test method is applicable to all grades and varieties of homogeneous milled asbestos.
1.3 This test method may be applied to samples that are not dry or homogeneous, or that contain impurities or adulterants. However, in such cases, results may not be comparable with those obtained on clean dry samples.
1.4 To obtain similar results from spectrophotometers, see Test Method E308.
1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.6 Warning—Breathing of asbestos dust is hazardous. Asbestos and asbestos products present demonstrated health risks for users and for those with whom they come into contact. In addition to other precautions, when working with asbestos-cement products, minimize the dust that results. For information on the safe use of chrysotile asbestos, refer to “Safe Use of Chrysotile: A Manual of Preventive and Control Measures.”
1.7 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. ^REFERENCE:
ASTM Standards:
D2244 Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
D2590 Test Method for Sampling Chrysotile Asbestos
D2946 Terminology for Asbestos and Asbestos–Cement Products
D3879 Test Method for Sampling Amphibole Asbestos (Withdrawn)
E3 Guide for Preparation of Metallographic Specimens
E259 Practice for Preparation of Pressed Powder White Reflectance Factor Transfer Standards for Hemispherical and Bi-Directional Geometries
E308 Practice for Computing the Colors of Objects by Using the CIE System
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D2244 Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
D2590 Test Method for Sampling Chrysotile Asbestos
D2946 Terminology for Asbestos and Asbestos-Cement Products
D3879 Test Method for Sampling Amphibole Asbestos
E3 Guide for Preparation of Metallographic Specimens
E259 Practice for Preparation of Pressed Powder White Reflectance Factor Transfer Standards for Hemispherical and Bi-Directional Geometries
E308 Practice for Computing the Colors of Objects by Using the CIE System
ICS Code
ICS Number Code 17.180.20 (Colours and measurement of light)
UNSPSC Code
UNSPSC Code 41110000(Measuring and observing and testing instruments); 11101510(Asbestos)
Referencing This Standard
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DOI: 10.1520/D2985_D2985M-92R11E01
Citation Format
ASTM D2985 / D2985M-92(2011)e1, Standard Test Method for Color of Asbestos, ASTM International, West Conshohocken, PA, 2011, www.astm.org
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