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ASTM B634-14a(2021)
Standard Specification for Electrodeposited Coatings of Rhodium for Engineering Use
Standard Specification for Electrodeposited Coatings of Rhodium for Engineering Use
B0634-14AR21
ASTM|B0634-14AR21|en-US
Standard Specification for Electrodeposited Coatings of Rhodium for Engineering Use
Standard
B634 Standard Specification for Electrodeposited Coatings of Rhodium for Engineering Use>
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BOS Vol. 02.05 Committee B08
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Abstract
This specification covers the requirements for electrodeposited rhodium coatings for engineering applications, usually employed for their corrosion resistance, stable electrical contact resistance, wear resistance, reflectivity, and heat resistance. Coating shall be classified based on their thickness. Specimens shall undergo preparatory preplating procedures such as surface cleaning and stress relief treatment, as well as post-plating embrittlement relief process. Coatings shall be sampled, tested, and conform accordingly to specified requirements as to purity, appearance, adhesion, hydrogen embrittlement, reflectivity, and thickness (to be measured either nondestructively by beta backscatter method or X-ray fluorescence, or destructively by microscopical cross sectioning method).
Scope
1.1 This specification covers requirements for electrodeposited coatings of rhodium used for engineering purposes.
1.2 Coatings of rhodium covered by this specification are usually employed for their corrosion resistance, stable electrical contact resistance, wear resistance, reflectivity, and heat resistance.
1.3 Appendix X1 covers some typical applications for electrodeposited rhodium.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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.