ASTM B 428 – 93 International standard

Standard Test Method for Angle of Twist in Rectangular and Square Copper and Copper Alloy Tube1

This general is issued below the fixed designation b 428; the number at once following the designation shows the yr of unique adoption or, inside the case of revision, the yr of remaining revision. More than a few in parentheses shows the yr of remaining reapproval. A superscript epsilon (e) shows a piece of writing exchange because the remaining revision or reapproval.
This preferred has been accredited to be used via companies of the branch of protection.

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You can also get ASTM B 427 – 02 International standard

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