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Document Designation and Title Year Select Item(s) C1231/C1231M Standard Practice for Use of Unbonded Caps in Determination of Compressive Strength of Hardened Concrete Cylinders 10a C1231/C1231M Standard Practice for Use of Unbonded Caps in Determination of Compressive Strength of Hardened Concrete Cylinders 10 C1231/C1231M Standard Practice for Use of Unbonded Caps in Determination of Compressive Strength of Hardened Concrete Cylinders 09 C1231/C1231M Standard Practice for Use of Unbonded Caps in Determination of Compressive Strength of Hardened Concrete Cylinders 08a C1231/C1231M Standard Practice for Use of Unbonded Caps in Determination of Compressive Strength of Hardened Concrete Cylinders 08 C1231/C1231M Standard Practice for Use of Unbonded Caps in Determination of Compressive Strength of Hardened Concrete Cylinders 07 C1231/C1231M Standard Practice for Use of Unbonded Caps in Determination of Compressive Strength of Hardened Concrete Cylinders 06 C1231/C1231M Standard Practice for Use of Unbonded Caps in Determination of Compressive Strength of Hardened Concrete Cylinders 00e1