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ASTM D5796-99

Historical Revision

Standard Test Method for Measurement of Dry Film Thickness of Thin-Film Coil-Coated Systems by Destructive Means Using a Boring Device

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1.1 This test method covers the measurement of dry film thickness (DFT) of coating films by microscopic observation of a precision-cut shallow-angle crater in the coating film.

1.2 The substrate may be any rigid, metallic material, for example, cold-rolled steel, hot-dipped galvanized steel, aluminum, etc. The substrate should be planar.

Note-Variations in the surface profile of the substrate may result in nonrepresentative organic coating thickness readings. This condition may exist over substrates such as hot-dipped, coated steel sheet. This is true of all "precision cut" methods that are used to determine dry film thickness of organic coatings.

1.3 The range of thickness measurement is 0 to 3.5 mils (0 to 88 [mu]m).

1.4 Measurements may be made on coil-coated sheet, certain formed products, or on test panels.

1.5 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

1.6 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.


SDO ASTM: ASTM International
Document Number D5796
Publication Date Dec. 10, 1999
Language en - English
Page Count 3
Revision Level 99
Supercedes
Committee D01.53
Publish Date Document Id Type View
Sept. 1, 2024 D5796-24 Revision
July 1, 2020 D5796-20 Revision
Dec. 1, 2010 D5796-10 Revision
May 10, 2003 D5796-03 Revision
Dec. 10, 1999 D5796-99 Revision
June 1, 2015 D5796-10R15 Reaffirmation
June 1, 2010 D5796-03R10 Reaffirmation