Standard Specification for
This preferred is issued beneath the fixed designation c ninety one; the wide variety without delay following the designation indicates the yr of authentic
adoption or, in the case of revision, the year of remaining revision. various in parentheses suggests the 12 months of remaining reapproval. a superscript
epsilon (e) indicates an editorial exchange since the closing revision or reapproval.
This popular has been accepted to be used with the aid of businesses of the department of defense.
click below to download Astm C 91 – 03a pdf free
click here to download Astm C 90 – 03 pdf free