ASTM B530-09(2021)
Standard Test Method for Measurement of Coating Thicknesses by the Magnetic Method: Electrodeposited Nickel Coatings on Magnetic and Nonmagnetic Substrates

Standard No.

ASTM B530-09(2021)

Release Date

2021

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM B530-09(2021)

Scope

1.1 This test method covers the use of magnetic instruments for the nondestructive measurement of the thickness of an electrodeposited nickel coating on either a magnetic or nonmagnetic substrate. It is intended to supplement manufacturers’ instructions for the operation of the instruments and is not intended to replace them. 1.2 These instruments measure either the magnetic attraction between a magnet and the coating-substrate combination (categorized as “magnetic pull-off”), or the change in magnetic flux density within the probe (categorized as “electronic”). 1.3 For this test method, there are two types of coatingsubstrate combinations that can be encountered: Type A, nickel coatings on a magnetic substrate, and Type B, nickel coatings on a nonmagnetic substrate. 1.4 The effective measuring ranges of instruments using the principle of magnetic attraction are up to 50 µm (2 mils) for Type A coatings, and up to 25 µm (1 mil) for Type B coatings. For gages based on change in magnetic flux density principles, the effective ranges are much greater, and measurements up to 1 mm (40 mils) or more, can be made on both types of coatings. 1.5 Measurements made in accordance with this test method will be in compliance with the requirements of ISO Standard 2361 as printed in 1982. 1.6 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.7 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. 1.8 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.

ASTM B530-09(2021) 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
• ASTM B504 Standard Test Method for Measurement of Thickness of Metallic Coatings by the Coulometric Method*， 2023-05-01 Update
• ASTM B748 Standard Test Method for Measurement of Thickness of Metallic Coatings by Measurement of Cross Section with a Scanning Electron Microscope*， 2021-10-01 Update
• ISO 2361 Electrodeposited nickel coatings on magnetic and non-magnetic substrates; Measurement of coating thickness; Magnetic method

ASTM B530-09(2021) history

• 2021 ASTM B530-09(2021) Standard Test Method for Measurement of Coating Thicknesses by the Magnetic Method: Electrodeposited Nickel Coatings on Magnetic and Nonmagnetic Substrates
• 2009 ASTM B530-09(2014) Standard Test Method for Measurement of Coating Thicknesses by the Magnetic Method: Electrodeposited Nickel Coatings on Magnetic and Nonmagnetic Substrates
• 2009 ASTM B530-09 Standard Test Method for Measurement of Coating Thicknesses by the Magnetic Method: Electrodeposited Nickel Coatings on Magnetic and Nonmagnetic Substrates
• 2002 ASTM B530-02 Standard Test Method for Measurement of Coating Thicknesses by the Magnetic Method: Electrodeposited Nickel Coatings on Magnetic and Nonmagnetic Substrates
• 1996 ASTM B530-96 Standard Test Method for Measurement of Coating Thicknesses by the Magnetic Method Electrodeposited Nickel Coatings on Magnetic and Nonmagnetic Substrates