Volume 42, Number 413-414, 1962
|Page(s)||134 - 152|
Lactodensimètre de précision. étude et réalisationLUCETTE MARTELLI and P. NAVELLIER
Laboratoire Municipal de Paris
Abstract - It is useful, for the determination of the total solids of a milk, to know the fourth decimal of its specific gravity. Now, usually, this decimal is not shown on the commercial lactohydrometers; its determination is the aim of this work. The application to milk of hydrostatic and pycnometric reference methods is made clear. So tested milks are used to grade a precision lactohydrometer. This instrument and the corresponding cylinder are circumstantially described. This thermolactohydromerer is particularly characterized by a new scale fitted with colour rings intended to make easy the direct reading of the fourth decimal of the specific gravity.