ASTM A 688 A 688M – 03 International standard

Standard Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes1

This general is issued underneath the fixed designation a 688/a 688m; the wide variety immediately following the designation indicates the yr of unique adoption or, in the case of revision, the year of ultimate revision. Various in parentheses shows the yr of last reapproval. A superscript epsilon (e) suggests a piece of writing exchange for the reason that last revision or reapproval.

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You can also get ASTM A 686 – 92 International standard

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