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ASTM C448-88(2011)e1

Historical Reaffirmation

Standard Test Methods for Abrasion Resistance of Porcelain Enamels

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1.1 These test methods cover determination of the resistance of porcelain enamels to surface abrasion and subsurface abrasion.

1.2 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.

When a porcelain enamel is first subjected to abrasion of the type involved in these tests, the rate of wear or attrition is relatively low. As the enamel is subjected to continued abrasion, the rate of wear increases until it reaches a steady value. Thereafter, the rate of wear remains almost constant until the enamel is penetrated and the underlying ground coat or metal exposed. The abrasion that occurs during the period of increasing rate-of-weight loss is defined as surface abrasion and results in reduced gloss and cleanability with high-gloss enamels and a modification of color, appearance, or surface texture, or combination thereof with low-gloss enamels. The abrasion that occurs during the period of steady rate-of-weight loss is defined as subsurface abrasion and results in the destruction of the continuity of the coating. These two types of abrasion are not necessarily proportional, and since it is desirable to be able to determine the resistance of porcelain enamel to both types of abrasion, it is necessary to deal with each one separately.

SDO ASTM: ASTM International
Document Number C448
Publication Date April 1, 2011
Language en - English
Page Count 10
Revision Level 88(2011)e1
Supercedes
Committee B08.12
Publish Date Document Id Type View
April 1, 2021 C0448-88R21 Reaffirmation
Nov. 1, 2016 C0448-88R16 Reaffirmation
April 1, 2011 C0448-88R11E01 Reaffirmation
April 1, 2006 C0448-88R06 Reaffirmation
March 10, 1999 C0448-88R99 Reaffirmation