Standard Specification for
Gypsum Keene’s Cement1
This wellknown is issued below the constant designation c sixty one/c 61m; the range straight away following the designation shows the year
of unique adoption or, within the case of revision, the yr of final revision. quite a number in parentheses suggests the year of ultimate reapproval.
a superscript epsilon (e) indicates a piece of writing trade since the last revision or reapproval.
This preferred has been approved for use by way of organizations of the department of protection.
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