Standard Test Method for 45-deg Specular Gloss of Ceramic Materials (Withdrawn 2023)
Standard Test Method for 45-deg Specular Gloss of Ceramic Materials (Withdrawn 2023)C0346-87R18ASTM|C0346-87R18|en-USStandard Test Method for 45-deg Specular Gloss of Ceramic Materials (Withdrawn 2023)StandardC346 Standard Test Method for 45-deg Specular Gloss of Ceramic Materials (Withdrawn 2023)>newBOS Vol. 02.05 Committee B08
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ASTM International
Significance and Use
4.1 This test method may be used to compare the gloss of porcelain enamel, ceramic, and other finishes or to provide a comparison of their resistance to attack from acid, alkali, or other environmental factors by measurement of gloss loss.
Scope
1.1 This test method covers the determination of the specular gloss of porcelain enameled specimens, but may be applicable to other specimens having similar reflection characteristics. This test method may be used to compare the gloss of porcelain enameled specimens or to provide an index of acid or abrasion resistance by measurement of gloss loss.
Note 1:Specular gloss is one of several related appearance attributes that produce the sensation of glossiness. For this reason, specular gloss measurements may not always correlate well with visual rankings of glossiness.
Note 2:Improved correlations with visual judgments can sometimes be achieved by the use of instruments with different geometries than those specified herein. Refer to Test Method D523 for 20, 60, and 85-deg geometries. Values generally cannot be predicated for one geometry from measurements made with another.
1.2This 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.3This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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