ASTM B840-22
Standard Specification for Electrodeposited Coatings of Zinc Cobalt Alloy Deposits

Standard No.

ASTM B840-22

Release Date

2022

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM B840-22

Scope

1.1 This specification covers the requirements for electrodeposited zinc cobalt alloy coatings on metals. 1.2 The following precautionary caveat pertains to the test method portion only, Section 8, of this specification: 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. 1.3 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 B840-22 Referenced Document

• ASTM B117 Standard Practice for Operating Salt Spray (Fog) Apparatus
• ASTM B183 Standard Practice for Preparation of Low-Carbon Steel for Electroplating
• ASTM B242 Standard Guide for Preparation of High-Carbon Steel for Electroplating
• ASTM B320 Standard Practice for Preparation of Iron Castings for Electroplating
• ASTM B322 Standard Guide for Cleaning Metals Prior to Electroplating
• ASTM B374 Standard Terminology Relating to Electroplating
• 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 B507 Standard Practice for Design of Articles to Be Electroplated on Racks
• ASTM B568 Standard Test Method for Measurement of Coating Thickness by X-Ray Spectrometry
• ASTM B571 Standard Practice for Qualitative Adhesion Testing of Metallic Coatings
• ASTM B602 Standard Test Method for Attribute Sampling of Metallic and Inorganic Coatings
• ASTM B697 Standard Guide for Selection of Sampling Plans for Inspection of Electrodeposited Metallic and Inorganic Coatings
• ASTM B762 Standard Test Method of Variables Sampling of Metallic and Inorganic Coatings
• ASTM B849 Standard Specification for Pre-Treatments of Iron or Steel for Reducing Risk of Hydrogen Embrittlement
• ASTM B850 Standard Guide for Post-Coating Treatments of Steel for Reducing the Risk of Hydrogen Embrittlement
• ASTM D3951 Standard Practice for Commercial Packaging

ASTM B840-22 history

• 2022 ASTM B840-22 Standard Specification for Electrodeposited Coatings of Zinc Cobalt Alloy Deposits
• 2015 ASTM B840-15 Standard Specification for Electrodeposited Coatings of Zinc Cobalt Alloy Deposits
• 1999 ASTM B840-99(2009) Standard Specification for Electrodeposited Coatings for Zinc Cobalt Alloy Deposits
• 1999 ASTM B840-99(2004) Standard Specification for Electrodeposited Coatings for Zinc Cobalt Alloy Deposits
• 1999 ASTM B840-99 Standard Specification for Electrodeposited Coatings for Zinc Cobalt Alloy Deposits