ASTM B499 - 09(2021)e1
Standard Test Method for Measurement of Coating Thicknesses by the Magnetic Method: Nonmagnetic Coatings on Magnetic Basis Metals
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| Fecha edición: |
2021-04-01
Anulada
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| Fecha cancelación: | 2021-04-01 |
| Idiomas disponibles: | Inglés |
| Resumen: | |
| Keywords: | coating thickness; coatings; magnetic method; nondestructive thickness; nonmagnetic coatings; plating thickness; thickness; thickness testing; |
| Scope: | 1.1 This test method covers the use of magnetic instruments for the nondestructive measurement of the thickness of nonmagnetic coatings over ferrous or other magnetic base metals. It is intended to supplement manufacturers’ instructions for the operation of the instruments and is not intended to replace them. Note 1: Autocatalytically deposited nickel-phosphorus alloys containing more than 8 % phosphorus are sufficiently nonmagnetic to be measured by this test method, as long as the measurement is made prior to any heat treatment. 1.2 These instruments measure either the magnetic attraction between a magnet and the basis metal, as influenced by the presence of the coating (categorized as “magnetic pull-off”), or the change in magnetic-flux density within the probe (categorized as “electronic”). These instruments cannot distinguish the thickness of individual layers. They can only measure the cumulative thickness of all layers beneath the probe down to the base metal. 1.3 Measurements made in accordance with this test method will be in compliance with the requirements of ISO International Standard 2178. 1.4 Units—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. |
| ICS: | 17.040.20 - Estado de las superficies |
| CTN: | B08.10 - B08.10 |
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Otras Relaciones |
Es referenciada por A896/A896M - 09(2025)e1 Es referenciada por A0799_A0799M-10R20 Es referenciada por B0530-09R21 Es referenciada por B0679-98R21 Es referenciada por B0177_B0177M-11R21 Es referenciada por B0244-09R21 Es referenciada por E0376-19 Es referenciada por B0659-90R21 Es referenciada por D5087-02R21 Es referenciada por A1074-11R20 Es referenciada por B0695-21 Es referenciada por B0700-20 Es referenciada por B0733-22 Es referenciada por D7270-07R21 Es referenciada por B0984-12R20E01 Es referenciada por B0842-23 Es referenciada por B0605-22 Es referenciada por B0840-22 Es referenciada por B0766-23 Es referenciada por B0456-17R22 |
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