Standard Specification For Electrodeposited Coatings Of Silver For Engineering Use

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

Document ID 
https://standards.nasa.gov/documents/detail/3314903