ASTM B 522 – 01 International standard

Standard Specification for Gold-Silver-Platinum Electrical Contact Alloy

This general is issued underneath the fixed designation b 522; the range without delay following the designation indicates the 12 months of unique adoption or, within the case of revision, the year of last revision. A number in parentheses shows the 12 months of remaining reapproval. A superscript epsilon (e) indicates an editorial exchange for the reason that closing revision or reapproval.
This general has been permitted for use by corporations of the branch of defense.

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You can also get ASTM B 521 – 98 International standard

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