This national standard specifies the instruments, working methods, and result evaluations for autoclave method for soundness of portland cement.
This standard is applicable to measure the bulk heterogeneities change (caused by the hydration of periclase)of cements of portland cement, normal portland cement, slag portland cement, portland-pozzolana cement and portland fly-ash cement, also, it is applicable to other cements which are appointed to adopt this national standard.
