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ASTM D1474-98

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Standard Test Methods for Indentation Hardness of Organic Coatings

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1.1 These test methods cover the determination of the indentation hardness of organic materials such as dried paint, varnish, and lacquer coatings, when applied to an acceptable plane rigid surface, for example, metal or glass.

1.2 Two methods are covered as follows:

Sections Method A---Knoop Indentation Hardness 6 to 12 Method B---Pfund Indentation Hardness 13 to 19

1.3 Method A, which has the greater precision, provides hardness values in terms of Knoop Hardness Number (KHN). Method B provides hardness in terms of Pfund Hardness Number (PHN). Although the hardness value scales of these methods differ, the methods agree in the ranking of coating hardness.

1.4 This standard does not purport to address the safety problems, 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.


SDO ASTM: ASTM International
Document Number D1474
Publication Date Dec. 10, 1998
Language en - English
Page Count 5
Revision Level 98
Supercedes
Committee D01.23
Publish Date Document Id Type View
Dec. 10, 1998 D1474-98 Revision
July 1, 2008 D1474-98R08 Reaffirmation
Dec. 10, 1998 D1474-98R02 Reaffirmation