Find the most up-to-date version of ASTM B at Engineering ASTM B_能源/化工_工程科技_专业资料。Designation: B – 07 Standard Speci?cation for Silver-Coated Soft or Annealed Copper. Buy ASTM B SPECIFICATION FOR SILVER-COATED SOFT OR ANNEALED COPPER WIRE from SAI Global.
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When the latter method is used, the zero length shall be the distance between the jaws at the start of the tension 2b98 and be as near 10 in.
ASTM B298 – 12(2017)
There are thickness testing machines available that can be used to perform this measurement. Wire whose coating weight corresponds to a thickness less than 40? Abstract This specification covers silver-coated, soft or annealed, round copper wire, intended for use in electrical equipment.
Individual production units that fail to meet one or more of the requirements shall be rejected. From each spool approximately 12 ft 3. The cell serves as cathode ashm the piece to be tested is the anode. There were no books found for the applied search filters. The result will be the thickness of the plating in microinches.
NOTE 1—The following speci? Cool and weigh as AgCl. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
Failure to meet this requirement shall constitute failure to meet the dimensional conformance criterion. 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. However, any individual production unit, the specimen from satm failed to meet the continuity criteria, shall be rejected.
The weight of silver, in percent of the total weight of the wire, may be calculated as follows Explanatory Note Wash free of copper salts with HNO3 wash solution, followed by two to four washings with alcohol wash solution. Tensile strength test, resistivity test, weight of coating, and dimensional measurements shall be performed to conform to the requirements specified.
See Explanatory Note 2. This abstract is a brief summary of the referenced standard. The conformance criteria for each of the prescribed properties given in Section 5 are as follows: The coated wire shall not vary from the speci?
Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. However, in the case of heavy coatings the results obtained by the use of this equation will indicate a slightly higher percent weight than is actually present.
Heat to boiling, remove from the hot plate, and add slowly, with rapid stirring, 10 mL of NaCl solution. Do not handle that part of the specimen to be immersed in the testsolution.
Lay the wire sample on a? For specific precautionary statements see 8. Make this measurement as accurately as possible.
ASTM B – 12() – Standard Specification for Silver-Coated Soft or Annealed Copper Wire
Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. This standard does not purport to address all of the safety concerns, if any, associated with its use. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.
Essentially, therefore, the electronic thickness tester embodies a miniature reverse-current plating cell in which the piece to be tested is the anode and the cell itself is the cathode.
NOTE 13—The equation given for the weight of the silver on the wire is for most purposes sufficiently accurate. Historical Version s – view previous versions of standard. Failure to meet this requirement shall constitute failure to meet the packaging conformance criterion. Are you sure you want to empty the cart? In the case of tests on soft or annealed copper wire, however, the effects of speed of testing are not pronounced. The values given in parentheses are provided for information purposes only.
Allow to cool and the precipitate to settle. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
NOTE 11—Attention is called to the desirability for agreement between the manufacturer and the purchaser on package sizes that will be sufficiently large and yet not so heavy or bulky that the wire may likely be damaged in handling. Make the test solution by diluting a portion of the concentrated solution with distilled water to a speci?
When coatings other than these classes are required, the weight of the coating shall be not less than that speci? NOTE 10—A lot should comprise material taken from a product regularly meeting the requirements of this speci? For all other properties values stated in inch-pound units are to be regarded as the standard.
Examine the specimen with the unaided eye normal spectacles excepted against a white background. Copyright Compu-tecture, Inc.