ISO 649-1:1981

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

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.

OEN:

ISO

Langue:

English

Code(s) de l'ICS:

17.060

Statut:

Annulée

Date de Publication:

1981-07-31

Numéro Standard:

ISO 649-1:1981