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This standard specifies the principle,apparatus,laboratory and materials,test method,results and calculation while determining the fluidity of cement mortar.
This standard is applicable to the determination the fluidity of cement mortar.
This standard specifies the cement fineness screening test method by means of the standard sieves of 45 μm square mesh and 80 μm square mesh.
This standard is applicable to Portland cement,ordinary Portland cement,slag Portland cement,pozzolanic Portland cement,fly ash Portland cement,compound Portland cement and other kinds of cement and powdery materials to which this standard is specified to apply.