Hydrometers -- Principles of construction and adjustment

رقم المستند: NL ISO 387 : 2008
القطاع: Metrology and Measurement. Physical Phenomena
TC: No
ICS:
Glass hydrometers of constant mass which do not incorporate a thermometer are considered. Basis of scale, reference temperature, surface tension and reference levels for adjustment and reading are specified. In annex A the standard categories of surface tension are tabled, and annex B deals with the adoption of density as preferred basis of scale.