ASTM B700-20 - 1.11.2020
 
1. Scope

1.1?This specification covers requirements for electrodeposited coatings of silver used for engineering purposes that may be matt, bright, or semibright and are not less than 98 % silver purity.

1.2?Coatings of silver covered by this specification are usually employed for solderable surfaces, electrical contact characteristics, high electrical and thermal conductivity, thermocompression bonding, wear resistance of load-bearing surfaces, and spectral reflectivity.

1.3?In the Appendixes, important characteristics of electrodeposited silver coatings are briefly described which must be considered when used in engineering applications, namely electrical conductivity (see Appendix X1), silver migration (see Appendix X2), thickness (see Appendix X3), hardness (see Appendix X4), and atmospheric tarnish (see Appendix X5).

1.4?The following hazards caveat pertains only to the test methods section 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.

1.5?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.

 
2. Referenced Documents

B578-21

Standard Test Method for Microindentation Hardness of Electroplated Coatings

B579-22

Standard Specification for Electrodeposited Coatings of Tin-Lead Alloy (Solder Plate)

B602-21

Standard Guide for Attribute Sampling of Metallic and Inorganic Coatings

B678-23

Standard Test Method for Solderability of Metallic-Coated Products

B697-88(2021)

Standard Guide for Selection of Sampling Plans for Inspection of Electrodeposited Metallic and Inorganic Coatings

B762-21

Standard Guide of Variables Sampling of Metallic and Inorganic Coatings

B849-02(2023)

Standard Specification for Pre-Treatments of Iron or Steel for Reducing Risk of Hydrogen Embrittlement

B850-98(2022)

Standard Guide for Post-Coating Treatments of Steel for Reducing the Risk of Hydrogen Embrittlement

D3951-18(2023)

Standard Practice for Commercial Packaging

E1004-23

Standard Test Method for Determining Electrical Conductivity Using the Electromagnetic (Eddy Current) Method

F519-23

Standard Test Method for Mechanical Hydrogen Embrittlement Evaluation of Plating/Coating Processes and Service Environments

B322-99(2020)e1

Standard Guide for Cleaning Metals Prior to Electroplating (Includes all amendments and changes 12/7/2020).

B183-18(2022)

Standard Practice for Preparation of Low-Carbon Steel for Electroplating

B242-99(2020)

Standard Guide for Preparation of High-Carbon Steel for Electroplating

B252-92(2020)

Standard Guide for Preparation of Zinc Alloy Die Castings for Electroplating and Conversion Coatings

B253-11(2022)

Standard Guide for Preparation of Aluminum Alloys for Electroplating

B254-92(2020)e1

Standard Practice for Preparation of and Electroplating on Stainless Steel (Includes all amendments and changes 12/7/2020).

B281-88(2019)e1

Standard Practice for Preparation of Copper and Copper-Base Alloys for Electroplating and Conversion Coatings (Includes all amendments and changes 5/14/2019).

B343-92a(2020)

Standard Practice for Preparation of Nickel for Electroplating with Nickel (Includes all amendments and changes 12/4/2020).

B374-21

Standard Terminology Relating to Electroplating

B481-68(2019)

Standard Practice for Preparation of Titanium and Titanium Alloys for Electroplating

B482-85(2019)

Standard Practice for Preparation of Tungsten and Tungsten Alloys for Electroplating

B487-20

Standard Test Method for Measurement of Metal and Oxide Coating Thickness by Microscopical Examination of Cross Section

B499-09(2021)e1

Standard Test Method for Measurement of Coating Thicknesses by the Magnetic Method: Nonmagnetic Coatings on Magnetic Basis Metals (Includes all amendments and changes 5/18/2021).

B504-90(2023)

Standard Test Method for Measurement of Thickness of Metallic Coatings by the Coulometric Method

B507-14(2021)

Standard Practice for Design of Articles to Be Electroplated on Racks

B542-13(2019)

Standard Terminology Relating to Electrical Contacts and Their Use

B567-98(2021)

Standard Test Method for Measurement of Coating Thickness by the Beta Backscatter Method

B568-98(2021)

Standard Test Method for Measurement of Coating Thickness by X-Ray Spectrometry

B571-23

Standard Practice for Qualitative Adhesion Testing of Metallic Coatings