1、METRIC PRACTICE GUIDE FOR CEMENTInch-Pound Units Factor SI Unitsinch 3 25.40 = millimetre (mm)inch23 6.452 = centimetre2(cm2)foot33 0.02832 = metre3(m3)pound per foot33 16.02 = kilogram per cubic metre (kg/m3)pound per yard33 0.5933 = kilogram per cubic metre (kg/m3)quart (U.S. fluid) 3 0.9464 = lit
2、re decimetre3(dm3)pound 3 0.4536 = kilogram (kg)ton 3 0.9072 = megagram (Mg)psi 3 6.895 = kilopascal (kPa)psi 3 0.006895 = megapascal (MPa)grain 3 0.06480 = gram (g)horsepower 3 745.7 = watt (W)centimetre2per gram (cm2/g) 3 0.1000 = metre2per kilogram (m2/kg)calorie per gram 3 4.184 = kilojoule per
3、kilogram (kJ/kg)ounce (U.S. fluid) 3 29.57 = cubic centimetre (cm3) (millilitre)pound-force (lbf avoirdupois) 3 4.448 = newton (N)pound-force (lbf avoirdupois) x 0.004448 = kilonewton (kN)temperature, degree Fahrenheit (F) (F 32)/1.8 = temperature, degree Celsius (C)temperature interval (F) 359 = te
4、mperature interval (C)NoteWhen converting from alternative designation of sieves in inch-pound units, the proper quantity in SI units is that given in Table 1 of Specification E 11, Wire-Cloth Sieves for Testing Purposes, and not the quantity calculated from the alternative designation. (For example, the “1-in.” sieve is the 25.0-mm sieve, not the25.4-mm sieve).1
