H-B DURAC 29/41 Degree API ASTM 4H HydrometerThese plain form hydrometers are available in a variety of models measuring the relative densities (specific gravity) of oil and petroleum products in various ranges from -1° to 96°API in accordance with the American Petroleum Institute (API) and the Amer..
H-B DURAC 39/51 Degree API ASTM 5H HydrometerThese plain form hydrometers are available in a variety of models measuring the relative densities (specific gravity) of oil and petroleum products in various ranges from -1° to 96°API in accordance with the American Petroleum Institute (API) and the Amer..
H-B DURAC Individually Calibrated 19/31 Degree API ASTM 3H HydrometerChoose from a wide range of individually calibrated plain form models measuring the relative density (specific gravity) of oil and petroleum related products in various ranges from -1° to 91°API in accordance with the American Petr..
H-B DURAC Individually Calibrated 29/41 Degree API ASTM 4H HydrometerChoose from a wide range of individually calibrated plain form models measuring the relative density (specific gravity) of oil and petroleum related products in various ranges from -1° to 91°API in accordance with the American Petr..
H-B DURAC Safety 19/31 Degree API Combined Form Thermo-HydrometerThese combined-form hydrometers, with a convenient, built-in thermometer, come in a wide range of models measuring the relative density (specific gravity) of oil and petroleum related products in various ranges from -1° to 101°API in a..
H-B DURAC Safety 29/41 Degree API Combined Form Thermo-HydrometerThese combined-form hydrometers, with a convenient, built-in thermometer, come in a wide range of models measuring the relative density (specific gravity) of oil and petroleum related products in various ranges from -1° to 101°API in a..
H-B DURAC Safety 39/51 Degree API Combined Form Thermo-HydrometerThese combined-form hydrometers, with a convenient, built-in thermometer, come in a wide range of models measuring the relative density (specific gravity) of oil and petroleum related products in various ranges from -1° to 101°API in a..
H-B DURAC Safety 9/21 Degree API Combined Form Thermo-HydrometerThese combined-form hydrometers, with a convenient, built-in thermometer, come in a wide range of models measuring the relative density (specific gravity) of oil and petroleum related products in various ranges from -1° to 101°API in ac..