Tiêu chuẩn quốc tế
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Số hiệu
Standard Number
ASTM B298-99
Năm ban hành 1999
Publication date
Tình trạng
W - Hết hiệu lực
Status |
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Tên tiếng Anh
Title in English Standard Specification for Silver-Coated Soft or Annealed Copper Wire
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Chỉ số phân loại Quốc tế (ICS)
By field |
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Số trang
Page 8
Giá:
Price Liên hệ / Contact us
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Phạm vi áp dụng
Scope of standard 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.
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