Standard Speciﬁcation for Gypsum1
This popular is issued beneath the ﬁxed designation c 22/c 22m; the range straight away following the designation suggests the year of original adoption or, within the case of revision, the year of ultimate revision. more than a few in parentheses suggests the 12 months of ultimate reapproval. a superscript epsilon (e) indicates a piece of writing exchange for the reason that last revision or reapproval.
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