TY  - BOOK
AU  - Bureau of Indian Standards[BIS]
TI  - IS:4031-(Pt.15)-1991. Indian standard methods of physical tests for hydraulic cement. Pt.15 : determination of fineness by wet sieving. 
U1  - IS CODE 
PY  - 1991///
CY  - New Delhi
PB  - Bureau of Indian Standards
ER  -