ASTM D1480 & D1217

The test method ASTM D1480 covers the determination of density of materials which are fluid at the desired tempeture by use of a Bingham pycnometer.
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Why is it important to know the density of semi-solid bituminous materials by pycnometers?

Values of density are used for converting volumes to units of mass, and for correcting measured volumes from the temperature of measurement to a standard temperature of 15°C. The determination of densities at the elevated temperatures of 40 °C and 100 °C is particularly useful in providing the data needed for the conversion of kinematic viscosities in mm2/s (centistokes) to the corresponding dynamic viscosities in mPa·s (centipoises). Density is a fundamental physical property that can be used in conjunction with other properties to characterize both the light and heavy fractions of petroleum and to assess the quality of crude oils.  Determination of the density or relative density of petroleum and its products is necessary for the conversion of measured volumes to volumes at the standard temperatures of 15 °C. 

Summary of the test method

For the ASTM D1480 test method the sample is placed in a Bingham pycnometer. The liquid sample is introduced into the pycnometer, equilibrated to the desired temperature, and weighed. The density or specific gravity is then calculated from this weight and the previously determined calibration factor, and a correction is applied for the buoyancy of air.

 Why should you use a  Tamson liquid bath to determine the density of materials by using a pycnometer?

The Tamson TV12 is used as a liquid bath and can be used from ambient +5°C to 120°C. The temperature stability is unique and the bath is fitted with adjustable feet for leveling. The cover of the bath has 4 round ø 51 mm openings with lids, for suspending Bingham pycnometers in Bingham pycnometer holders. To work at sub-ambient temperatures, use of cooling must be made. Cooling fluid can be pumped through the cooling coil inside the TV12. The external TLC10-3 can be used for this purpose.

 Please contact our sales team (sales@tamson.nl) to get a quotation. Or visit our webshop to get price and technical information of a Tamson liquid bath and the required accessories and consumables for the  determination of density by use of a pycnometer conform to ASTM D1480.