BS 718:1991

Five series of hydrometers for liquids with densities between 600 and 2000 kg/m^3 at 20°C and three sub-series for petroleum products for densities between 600 and 1100 kg/m^3 at 15°C. Materials, permitted errors, corrections for surface tension, temperature and meniscus, guide to purchasers, method of use, density of water from 0°C to 40°C, vessels for hydrometer observation.Cross References:BS 593BS 604BS 733:Part 2BS 4714 BS 6441ISO/R 91:Addendum 01ISO 650ISO 1768ISO 3675