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ASTM B298-99

Historical Revision

Standard Specification for Silver-Coated Soft or Annealed Copper Wire

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1.1 This specification covers silver-coated, soft or annealed, round copper wire, intended for use in electrical equipment, as follows:

1.1.1 Class A -Wire whose silver coating is at least 1.25% of the total weight of the coated wire.

1.1.2 Class B -Wire whose silver coating is at least 2.50% of the total weight of the coated wire.

1.1.3 Class C -Wire whose silver coating is at least 4.00% of the total of the coated wire.

1.1.4 Class D -Wire whose silver coating is at least 6.10% of the total weight of the coated wire.

1.1.5 Class E -Wire whose silver coating is at least 10.00% of the total weight of the coated wire.

1.2 Silver-coated wire having different minimum percentages of silver by weight may be obtained by mutual agreement between the manufacturer and the purchaser. For information purposes the thickness of coating in microinches provided by the percentages listed above is shown in Table 1 (Explanatory Note 1).

1.3 The SI values of resistance and density are to be regarded as standard. For all other properties values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for information purposes only.

1.4 The following precautionary caveat pertains only to the test method 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 and health practices and determine the applicability of regulatory limitations prior to use. For specific precautionary statements see 8.4.1.2 and Explanatory Note 2.


SDO ASTM: ASTM International
Document Number B298
Publication Date April 10, 1999
Language en - English
Page Count 8
Revision Level 99
Supercedes
Committee B01.04
Publish Date Document Id Type View
Nov. 15, 2012 B0298-12 Revision
May 15, 2007 B0298-07 Revision
April 10, 1999 B0298-99E01 Revision
April 10, 1999 B0298-99 Revision
Oct. 1, 2024 B0298-12R24 Reaffirmation
April 1, 2017 B0298-12R17 Reaffirmation