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ASTM B 765 : 2003 : R2023

Current

Current

The latest, up-to-date edition.

Standard Guide for Selection of Porosity and Gross Defect Tests for Electrodeposits and Related Metallic Coatings

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

07-11-2023

€49.35
Excluding VAT

Committee
B 08
DocumentType
Guide
Pages
4
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

1.1This guide describes some of the available standard methods for the detection, identification, and measurement of porosity and gross defects in electrodeposited and related metallic coatings and provides some laboratory-type evaluations and acceptances. Some applications of the test methods are tabulated in Table 1 and Table 2.

1.2This guide does not apply to coatings that are produced by thermal spraying, ion bombardment, sputtering, and other similar techniques where the coatings are applied in the form of discrete particles impacting on the substrate.

1.3This guide does not apply to beneficial or controlled porosity, such as that present in microdiscontinuous chromium coatings.

1.4Porosity test results (including those for gross defects) occur as chemical reaction end products. Some occur in situ, others on paper, or in a gel coating. Observations are made that are consistent with the test method, the items being tested, and the requirements of the purchaser. These may be visual inspection (unaided eye) or by 10× magnification (microscope). Other methods may involve enlarged photographs or photomicrographs.

1.5The test methods are only summarized. The individual standards must be referred to for the instructions on how to perform the tests.

1.6The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.

1.7This 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.

1.8This 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 B 798 : 1995 : R2020 Standard Test Method for Porosity in Gold or Palladium Coatings on Metal Substrates by Gel-Bulk Electrography
ASTM B 679 : 1998 : R2021 Standard Specification for Electrodeposited Coatings of Palladium for Engineering Use
ASTM B 809 : 1995 : R2018 Standard Test Method for Porosity in Metallic Coatings by Humid Sulfur Vapor (“Flowers-of-Sulfur”)
ASTM B 488 : 2018 Standard Specification for Electrodeposited Coatings of Gold for Engineering Uses
ASTM B 877 : 1996 : R2018 Standard Test Method for Gross Defects and Mechanical Damage in Metallic Coatings by the Phosphomolybdic Acid (PMA) Method
ASTM B 605 : 2022 Standard Specification for Electrodeposited Coatings of Tin-Nickel Alloy
ASTM B 827 : 2005 : R2020 Standard Practice for Conducting Mixed Flowing Gas (MFG) Environmental Tests
ASTM B 545 : 2022 Standard Specification for Electrodeposited Coatings of Tin
ASTM B 799 : 1995 : R2020 Standard Test Method for Porosity in Gold and Palladium Coatings by Sulfurous Acid/Sulfur-Dioxide Vapor
ASTM B 689 : 1997 : R2023 Standard Specification for Electroplated Engineering Nickel Coatings
ASTM B 984 : 2012 : R2020 : EDT 1 Standard Specification for Electrodeposited Coatings of Palladium-Cobalt Alloy for Engineering Use
ASTM B 866 : 1995 : R2018 Standard Test Method for Gross Defects and Mechanical Damage in Metallic Coatings by Polysulfide Immersion
ASTM B 734 : 1997 : R2023 Standard Specification for Electrodeposited Copper for Engineering Uses
ASTM B 920 : 2016 : R2022 Standard Practice for Porosity in Gold and Palladium Alloy Coatings on Metal Substrates by Vapors of Sodium Hypochlorite Solution
ASTM B 735 : 2016 : R2022 Standard Test Method for Porosity in Gold Coatings on Metal Substrates by Nitric Acid Vapor

ASTM B 650 : 2023 Standard Specification for Electrodeposited Engineering Chromium Coatings on Ferrous Substrates
ASTM B 650 : 1995 : R2023 Standard Specification for Electrodeposited Engineering Chromium Coatings on Ferrous Substrates
ASTM B 542 : 2013 : R2019 Standard Terminology Relating to Electrical Contacts and Their Use
ASTM B 542 : 2024 Standard Terminology Relating to Electrical Contacts and Their Use

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