ISO-649-1 › Laboratory glassware - Density hydrometers for general purposes - Part 1 : Specification
ISO-649-1
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1ST EDITION
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CURRENT
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The requirements for basic series and sub-series of glass hydrometers of constant mass without built-in thermometer are specified. They are graduated to indicate density at 20 degrees centigrade and 15 degrees centigrade, respectively. Standard categories of surface tension are tabled in annex A, recommended stem diameters in annex B.
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Document Number
ISO 649-1:1981
Revision Level
1ST EDITION
Status
Current
Publication Date
Aug. 15, 1981
Committee Number
ISO TC 48