Standard Practice for Use of Unbonded Caps in Determination of Compressive Strength of Hardened Concrete Cylinders1
This standard is issued under the fixed designation C 1231/C 1231M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
Click below to download ASTM C 1231 C 1231M – 00e1 pdf free
Click HERE to download ASTM C 1230 – 96 pdf free