ASTM International - ASTM E430-11
Standard Test Methods for Measurement of Gloss of High-Gloss Surfaces by Abridged Goniophotometry
| Organization: | ASTM International |
| Publication Date: | 1 June 2011 |
| Status: | inactive |
| Page Count: | 10 |
| ICS Code (Properties of surfaces): | 17.040.20 |
significance And Use:
The gloss of metallic finishes is important commercially on metals for automotive, architectural, and other uses where these metals undergo special finishing processes to produce the appearances... View More
scope:
1.1 These test methods cover the measurement of the reflection characteristics responsible for the glossy appearance of high-gloss surfaces. Three test methods, A, B and C, are provided for evaluating such surface characteristics at specular angles of 30°, 20° and 30°, respectively. These test methods are not suitable for diffuse finish surfaces nor do they measure color, another appearance attribute.
1.2 As originally developed by Tingle and others (see Refs 1 and 2), the test methods were applied only to bright metals. Recently they have been applied to high-gloss automotive finishes and other nonmetallic surfaces.
1.3 The DOI of a glossy surface is generally independent of its curvature. The DOI measurement by this test method is limited to flat or flattenable surfaces.
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