ISO 649-1:1981 - $68.00   BUY NOW

Laboratory glassware - Density hydrometers for general purposes - Part 1 : Specification

ISO 649-1:1981 Publication Description:

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.

International Classification for Standards (ICS)

ICS Classification Field ICS Field Sub-Group and Number
ICS-17-Metrology ICS Measurement-Volume Mass Density Viscosity (17.060)

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