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ASTM B33-10(2014)

Historical Reaffirmation

Standard Specification for Tin-Coated Soft or Annealed Copper Wire for Electrical Purposes

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1.1 This specification covers tin-coated, round, soft, or annealed copper wire for electrical purposes.

1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.2.1 Exceptions—The SI values for density, resistivity, and volume are to be regarded as standard.

1.3 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.


This specification covers tinned, round, soft, or annealed copper wire for electrical purposes. The tinned wire shall conformto the required tensile strength and elongation. Electrical resistivity shall be measured. The wire sizes shall be expressed as the diameter of the wire and shall be measured using micrometre caliper equipped with a vernier. The tin coating shall be continuous. The continuity of the wire shall be determined on representative samples taken before stranding or insulating. The continuity of tinning shall be determined by the hydrochlroic acid-sodium polysulfide test. The tin coating shall be firmly adherent to the surface of the copper. The adherence of coating on the wire shall be determined on representative samples taken before stranding or insulating. The adherence of coating shall be determined by the wrapping and immersion test.


SDO ASTM: ASTM International
Document Number B33
Publication Date Sept. 1, 2014
Language en - English
Page Count 6
Revision Level 10(2014)
Supercedes
Committee B01.04
Publish Date Document Id Type View
Jan. 1, 2020 B0033-10R20E01 Revision
April 1, 2010 B0033-10 Revision
Sept. 1, 2004 B0033-04 Revision
April 10, 2000 B0033-00 Revision
Not Available B0033-91 Revision
Sept. 1, 2014 B0033-10R14 Reaffirmation