Five series of hydrometers for liquids with densities between 600 and 2000 kg/m3 at 20C and three sub-series for petroleum products for densities between 600 and 1100 kg/m3 at 15C. Materials, permitted errors, corrections for surface tension, temperature and meniscus, guide to purchasers, method of use, density of water from 0C to 40C, vessels for hydrometer observation.
Số hiệu tiêu chuẩn
BS 718:1991
Tên tiêu chuẩn
Specification for density hydrometers
Ngày phát hành
1991-05-31
Tiêu chuẩn tương đương
ISO 387:1977 NEQ * ISO 649-1:1981 NEQ * ISO 649-2:1981 NEQ
Tiêu chuẩn liên quan
BS 593 * BS 604 * BS 733:Part 2 * BS 4714 * BS 6441 * ISO/R 91:Addendum 01 * ISO 650 * ISO 1768 * ISO 3675
Từ khóa
Hydrometers * Density measurement * Laboratory glassware * Laboratory equipment * Standard temperature * Surface tension * Instrument scales * Graduations * Range (statistics) * Shape * Dimensions * Accuracy * Volume * Marking * Error correction * Menisci * Water
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