Scope and field of application This GSO standard specifies testing methods for the physical characteristics of Portland hydraulic cement including the following tests: 1.1 Softness 1.2 Standard texture of cement paste 1.3 Time required for initial setting and final setting of cement 1.4 Pressure resistance using cement mortar cube 1.5 Soundness (integrity) by Autoclave Method 1.6 Determination of hydration temperature 1.7 Determination of whiteness