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ASTM B702-93(2024)

Current Reaffirmation

Standard Specification for Copper-Tungsten Electrical Contact Material

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1.1 This specification covers electrical contact components made from copper tungsten by powder metallurgical procedures.

1.2 This specification covers compositions within the copper tungsten system normally specified by users of contacts.

1.3 The values stated in inch-pound 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 Data Safety 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.


This specification covers electrical contact components made from copper tungsten by powder metallurgical procedures. The material shall conform to the chemical composition limits as agreed upon between the manufacturer and the user using the newest edition of Annual Book of ASTM standards, or any other approved method agreed upon. Qualification tests for determination of physical properties shall be performed on production parts, wherever practical or applicable. The tests shall be determined after consideration of the function of the part.


SDO ASTM: ASTM International
Document Number B702
Publication Date Nov. 1, 2024
Language en - English
Page Count 3
Revision Level 93(2024)
Supercedes
Committee B02.05
Publish Date Document Id Type View
Nov. 1, 2024 B0702-93R24 Reaffirmation
Nov. 1, 2019 B0702-93R19 Reaffirmation
Oct. 1, 2015 B0702-93R15 Reaffirmation
Oct. 1, 2010 B0702-93R10 Reaffirmation
May 1, 2004 B0702-93R04 Reaffirmation
Sept. 23, 1999 B0702-93R98 Reaffirmation