Specification for Portland-blastfurnace cement. Part 2. Metric units. - Milton Keynes : British Standards Institution, 1973. - 1 v. : ill. ; 30 cm. - British standard; BS 146 : 1973 . - British standard; BS 146 : 1973 . ISBN: 0580077578 Subjects--Topical Terms: Portland cement --Standards.Cement --Standards.