Standard Specification for Welded Austenitic Steel Boiler, Superheater, HeatExchanger, and Condenser Tubes1
This fashionable is issued under the fixed designation a 249/a 249m; the range immediately following the designation indicates the yr of original adoption or, in the case of revision, the 12 months of remaining revision. a number of in parentheses suggests the 12 months of last reapproval. a superscript epsilon (e) shows an editorial exchange for the reason that closing revision or reapproval.
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click here to download Astm A 247 – 67 (Reapproved 1998) pdf free
