Specific Gravity ASTM Hydrometers
Durac specific gravity hydrometers measure the relative density of liquids compared to water in food & beverage, chemical, pharmacology, transportation and refrigeration industries. They have lead free ballast and glass construction for corrosion resistance and durability. Raptor Supplies also offers soil hydrometersto test the distribution of soil particle sizes for analysis of soil quality. Choose from a wide array of these ASTM certified hydrometers for measuring specific gravity ranging from 0.75 to 2 at a standardised temperature of 60 / 68 degrees F.