Standard Specification for
Calcium Silicate Brick (Sand-Lime Brick)1
This general is issued underneath the constant designation c seventy three; the variety straight away following the designation suggests the year of unique
adoption or, in the case of revision, the year of remaining revision. various in parentheses shows the 12 months of ultimate reapproval. a superscript
epsilon (e) indicates an article alternate because the closing revision or reapproval.
This preferred has been authorised for use with the aid of groups of the branch of defense.
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