Newly Established Hydrometer Calibration Set Up at UM

摘要

Hydrometer calibration could be performed by 'Cuckow Method' in which just a single liquid is sufficient for the calibration of the whole scale. Hydrometers are weighed first in air and then in a reference liquid in this method. The density of the reference liquid is well known and it is possible to determine the associated density value of the graduation mark by making use of weighing values and the density value of liquid in related formulas. The entire scale of Hydrometer can be calibrated in this way by immersing the hydrometer to the interested scale marks. In this paper, hydrometer calibration set up of UME is introduced and obtained measurement results from this set up are given for a sample hydrometer.