A hydrometer floats in an sample of alcohol and water. This floating device measures the specific gravity or density of the liquid. These devices are often used to make a quick measurement of the specific gravity of a liquid | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Kinsman, Edward |
Taille de l’image : | 2912 px × 4368 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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