Standards / Research Reports
Research Report RR:C09-1032An interlaboratory study which involved five operators and three concrete mixtures to establish precision values for ASTM test method C403/C403M.
C403/C403M-08 Standard Test Method for Time of Setting of Concrete Mixtures by Penetration Resistance
Committee C09 on Concrete and Concrete Aggregates
Subcommittee C09.23 on Chemical Admixtures