Ареометры. Принципы конструирования и калибрования
Название (англ.):
Hydrometers; Principles of construction and adjustment
Описание (англ.):
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.