000 00415nam a2200109Ia 4500
082 _aIS CODE
_bB.I.S
100 _aBureau of Indian Standards[BIS]
245 _aIS:4031-(Pt.2)-1999. Indian standard methods of physical tests for hydraulic cement. Pt.2 : determination of fineness by blaine air permeability method.
260 _aNew Delhi
_bBureau of Indian Standards
_c1999
300 _a7p.
890 _aIndia
999 _c18928
_d18928