ASTM B298 PDF

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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The above named apparatus and reagent is the product of Kocour Company, So. B — 07 Standard Speci? If the wire is lacquered, remove the lacquer with a solvent before testing. NOTE 12—Principle of Operation of the Electronic Thickness Tester— The unit operates by anodically deplating a small surface area of the specimen in a cell containing the test solution.

ASTM B298 – 12(2017)

Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. This standard does not purport to address all of the safety concerns, if any, associated with its use. It does not attack the plating unless current is? The wire shall be protected against damage in ordinary handling and shipping. 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.

From each spool approximately 12 ft 3. Enter your account email address to request a password reset: Copyright Compu-tecture, Inc. A portion of the test solution used for testing samples shall not be considered to be exhausted until it fails to blacken a piece of clean copper as described Explanatory Note 9: The more correct equation for all cases based on a density of Make this measurement as accurately as possible.

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ASTM B – 12() Standard Specification for Silver-Coated Soft or Annealed Copper Wire

It is the responsibility of the b98 of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. This specification covers silver-coated, soft or annealed, round b2298 wire, intended for use in electrical equipment. If only one specimen fails to meet the weight criteria, four additional specimens from the lot shall be tested, all of astj shall conform to the weight criterion. Do not handle that part of the specimen to be immersed in the testsolution.

After daily use or after a series of tests have been completed, return the test solution to a re-use storage bottle, and rinse the beaker thoroughly with water and dry it. Take care to avoid abrasion by the cut ends. The value of 0.

If there are failures, but the number of these do not exceed the allowable defect number, c2 Table 2for the respective number of units in the sample, a second sample equal to n2 shall be taken and the total defects of the n plus n2 units shall not exceed the allowable defect number, c2. This standard does not purport to address all of the safety concerns, if any, associated with its use.

A number in parentheses indicates the year of last reapproval. Specimens having 4 in. The wire b928 be bright and free from all imperfections not consistent with the best commercial practice. Users of asm standard are expressly advised that determination of the validity of wstm such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. NOTE 10—A lot should comprise material taken from a product regularly meeting the requirements of this speci?

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For information purposes the thickness of coating in microinches provided by the percentages listed above is shown in Table 1 Explanatory Note 1. Keep the specimens thus cleaned wrapped in a clean, dry cloth until tested. The equivalent resistivity values in Table 4 were derived from the fundamental IEC value 1? The continuity of the coating shall be determined on representative samples taken before stranding or insulating and shall be determined by the sodium polysul?

NOTE 5—Cumulative results secured on the product of a single manufacturer, indicating continued conformance to the criteria, are necessary to ensure an over-all product meeting the requirements of this speci? The latter term means that a copper wire 1 m in length and weighing 1 g would have a resistance of 0. Print 1 2 3 4 5 page sstarting from page current page. 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.

Cover the beaker, warm gently until solution is complete, and boil to expel brown fumes.

Attention is called also to the necessity for the use of sodium sul? Adjust the arm so that the wire is in the approximate center of the beaker. No requirements for tensile strength are speci? Lower b98 wire into the beaker until the liquid level is exactly at the crayon mark.

Search book title Enter keywords for book title search. See Table 1 for thickness of coatings for the various classes of coating and wire sizes.