Standard Specification for Seamless Copper Tube, Bright Annealed [Metric]1
This fashionable is issued under the fixed designation b 68m; the number right away following the designation shows the yr of authentic adoption or, in the case of revision, the year of ultimate revision. more than a few in parentheses suggests the yr of last reapproval. a superscript epsilon (e) suggests an editorial alternate since the last revision or reapproval.
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