ASTM B0693-17R22
Standard Specification for Silver-Nickel Electrical Contact Materials
| Standard number: | ASTM B0693-17R22 |
| Released: | 01.04.2022 |
| Status: | Active |
| Pages: | 3 |
| Section: | 02.04 |
| Keywords: | contacts; electrical contacts; electrical contact materials; impurities; silver-nickel; |
| ASTM number: | ASTM B693 |
| Supersedes: | B0693-17 |
This specification covers electrical contact components made from silver-nickel by powder metallurgical procedures. This covers compositions within the silver-nickel system normally specified by users of electrical contacts. Chemical analysis shall be performed to evaluate material conformance to specified composition requirements. A representative sample of chips may be obtained by milling, drilling, or crushing with dry tools, (without lubrication). In order to obtain free chips, the parts selected for testing shall have the oil extracted, if necessary. Physical tests including microstructure shall be performed on a representative number of specimens.
1.1 This specification covers electrical contact components made from silver nickel by powder metallurgical procedures.
1.2 This specification covers compositions within the silver-nickel system normally specified by users of electrical contacts.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 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 become familiar with all hazards including those identified in the appropriate Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, 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.