ASTM International - ASTM D4414-95(2020)

Standard Practice for Measurement of Wet Film Thickness by Notch Gages

active
Buy Now
Organization: ASTM International
Publication Date: 1 June 2020
Status: active
Page Count: 3
ICS Code (Paints and varnishes): 87.040
significance And Use:

4.1 Wet film thickness measurements of coatings applied on articles can be very helpful in controlling the thickness of the final dry coating, although in some specifications the wet film... View More

scope:

1.1 This practice describes the use of thin rigid metal notched gages, also called step or comb gages, in the measurement of wet film thickness of organic coatings, such as paint, varnish, and lacquer.

1.2 Notched gage measurements are neither accurate nor sensitive, but they are useful in determining approximate wet film thickness of coatings on articles where size(s) and shape(s) prohibit the use of the more precise methods given in Test Methods D1212.

1.3 This practice is divided into the following two procedures:

1.3.1 Procedure A-A square or rectangular rigid metal gage with notched sides is used to measure wet film thicknesses ranging from 3 to 2000 μm (0.5 to 80 mils 1). Such a gage is applicable to coatings on flat substrates and to coatings on articles of various sizes and complex shapes where it is possible to get the end tabs of the gage to rest in the same plane on the substrate.

1.3.2 Procedure B-A circular thin rigid metal notched gage is used to measure wet film thicknesses ranging from 25 to 2500 μm (1 to 100 mils ). Such a gage is applicable to coatings on flat substrates and to coatings on objects of various sizes and complex shapes.

1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6 This 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.

Document History

ASTM D4414-95(2020)
June 1, 2020
Standard Practice for Measurement of Wet Film Thickness by Notch Gages
1.1 This practice describes the use of thin rigid metal notched gages, also called step or comb gages, in the measurement of wet film thickness of organic coatings, such as paint, varnish, and...
July 1, 2013
Standard Practice for Measurement of Wet Film Thickness by Notch Gages
4.1 Wet film thickness measurements of coatings applied on articles can be very helpful in controlling the thickness of the final dry coating, although in some specifications the wet film thickness...
June 1, 2007
Standard Practice for Measurement of Wet Film Thickness by Notch Gages
Wet film thickness measurements of coatings applied on articles can be very helpful in controlling the thickness of the final dry coating, although in some specifications the wet film thickness is...
January 1, 2001
Standard Practice for Measurement of Wet Film Thickness by Notch Gages
1.1 This practice describes the use of thin rigid metal notched gages, also called step or comb gages, in the measurement of wet film thickness of organic coatings, such as paint, varnish, and...
January 1, 2001
Standard Practice for Measurement of Wet Film Thickness by Notch Gages
1.1 This practice describes the use of thin rigid metal notched gages, also called step or comb gages, in the measurement of wet film thickness of organic coatings, such as paint, varnish, and...
Advertisement