ASTM B555-86(2013) PDF

Scope: 4.1 The thickness of a metal coating is often critical to its performance.

4.2 This procedure is useful for an approximate determination when the best possible accuracy is not required. For more reliable determinations, the following methods are available: Test Methods B487, B499, B504, and B568.

4.3 This test assumes that the rate of dissolution of the coating by the corrosive reagent under the specified conditions is always the same.

1.1 This guide covers the use of the dropping test to measure the thickness of electrodeposited zinc, cadmium, copper, and tin coatings.
Note 1—Under most circumstances this method of measuring coating thicknesses is not as reliable or as convenient to use as an appropriate coating thickness gauge (see Test Methods B499, B504, and B568).

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.

ASTM B555-86(2013) Referenced Document

ASTM B487 Standard Test Method for Measurement of Metal and Oxide Coating Thickness by Microscopical Examination of Cross Section
ASTM B499 Standard Test Method for Measurement of Coating Thicknesses by the Magnetic Method: Nonmagnetic Coatings on Magnetic Basis Metals*， 1996-04-20 Update
ASTM B504 Standard Test Method for Measurement of Thickness of Metallic Coatings by the Coulometric Method*， 2023-05-01 Update
ASTM B568 Standard Test Method for Measurement of Coating Thickness by X-Ray Spectrometry*， 2021-04-01 Update
ASTM D1193 Standard Specification for Reagent Water*， 1999-04-20 Update

2023 ASTM B555-86(2023) Standard Guide for Measurement of Electrodeposited Metallic Coating Thicknesses by Dropping Test
2018 ASTM B555-86(2018) Standard Guide for Measurement of Electrodeposited Metallic Coating Thicknesses by Dropping Test
1986 ASTM B555-86(2013) Standard Guide for Measurement of Electrodeposited Metallic Coating Thicknesses by Dropping Test
1986 ASTM B555-86(2012) Standard Guide for Measurement of Electrodeposited Metallic Coating Thicknesses by Dropping Test
1986 ASTM B555-86(2007) Standard Guide for Measurement of Electrodeposited Metallic Coating Thicknesses by Dropping Test
1986 ASTM B555-86(2002) Standard Guide for Measurement of Electrodeposited Metallic Coating Thicknesses by the Dropping Test
1986 ASTM B555-86(1997) Standard Guide for Measurement of Electrodeposited Metallic Coating Thicknesses by the Dropping Test