ASTM B298 PDF

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

Failure to meet this requirement shall constitute failure to meet the packaging conformance criterion. It is also equivalent, for example, to 1. This value was corrected editorially to conform with Table X1. 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.

F Standard Specification for Driven Fasteners: Are you sure you want to empty the cart? No requirements for tensile strength are speci? If only one specimen fails to meet the weight criteria, four additional specimens from the lot shall be tested, all of which shall conform to the weight criterion.

B — 07 Standard Speci? 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. For continuity of coating determinations, the sample shall consist of eight production units. The average of the measurements obtained shall meet the awtm of 5. Adjust the arm so that the wire is in the approximate center of the beaker.

This is equivalent to a resistivity v298 of Failure of more than one specimen shall constitute failure to meet the weight criteria. Boil the solution 2 to 3 min to coagulate the AgCl precipitate. Do not handle that part of the specimen to be immersed in the testsolution. Individual production units that fail to meet one or more of the requirements shall be rejected.

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Abstract This specification covers silver-coated, soft or annealed, round copper wire, intended for use in electrical equipment. This abstract is a brief summary of the referenced standard.

Take care to avoid abrasion by the cut ends. A number b289 parentheses indicates the year of last reapproval. When coatings other than these classes are required, the weight of the coating shall be not less than that speci? Tensile strength test, resistivity test, weight of coating, and dimensional measurements shall be performed to conform to the requirements specified. The silver-coated wires are classified according to the total weight of the coated wires, namely; Class A, B, C, D, and E.

The silver-coated wires are classified according to the total weight of the b2988 wires, namely; Class A, B, C, D, and E. Cool and weigh as AgCl. 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. The cell serves as cathode and the piece to be tested is the anode. Materials and Manufacture 4.

NOTE 9—It is important that the polysul? See Table 1 for thickness of coatings for the various classes of coating and wire sizes. Inspection of individual lots of less than lb of wire cannot be justi?

ASTM B298 – 12(2017)

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Print 1 2 3 4 5 page sstarting asttm page current page. The specimens shall be considered to have failed if, by such blackening exposed copper is revealed. At astj start of the test and until the base metal is exposed, a voltage characteristic of the plating exists across the cell; when all the plating has been removed from the test spot, this voltage changes sharply and assumes a new value which is now characteristic of the base metal.

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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. However, any individual production unit, the specimen from which failed to meet the continuity criteria, shall be rejected. Failure of a sample group from a lot to meet one or more of the following criteria shall constitute cause for rejection of the lot. An excellent discussion of wire gages and related subjects is contained in NBS Handbook A solution that is not saturated with sulfur or that has been made from decomposed sodium sul?

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. Historical Version s – view previous versions of standard.

Therefore, the requirement that the solution be tested by observing its blackening effect on a bright aztm wire is signi? 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.

General Requirements General Requirements 5. Tensile strength test, resistivity test, weight of coating, and dimensional measurements shall be performed to conform to the requirements specified. The purchaser may accept certi? Make this measurement as accurately aetm possible.

The wire shall be protected against damage in ordinary handling and shipping. See Explanatory Note 2. A portion of the test solution g298 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: They shall be tagged or marked to correspond with the coil, spool, or reel from which they were cut.