ISO 649-1:1981
Laboratory glassware — Density hydrometers for general purposes — Part 1: Specification
Reference number
ISO 649-1:1981
Edición 1
1981-08
Retirada
ISO 649-1:1981
4781
Retirada (Edición 1, 1981)

Resumen

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.

Informaciones generales

  •  : Retirada
     : 1981-08
    : Retirada de la Norma Internacional [95.99]
  •  : 1
     : 9
  • ISO/TC 48/SC 4
    17.060 
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