Main technical specifications: ISO standard size for 100 ml volume; 50 ml specific volume; GB standard size for 37 ml volume Guaranteed to be within 1 mg (0.001%). Tests are performed at 23C 2C in accordance with ISO standards. Operating Procedure: - Weigh and record the weight of the clean density cup. - Adjust the temperature of the density cup and test solution (20C 0.5C/68F 1.0F) - Load the sample into the density cup - Close the lid without tilting to avoid air bubbles. - Absorb any spilled liquid with an absorbent cloth. - Weigh the liquid-filled density cup Calculation of density by specific gravity cup p = (m2 - m1)/ V m2 = total weight of cup and specimen (g) m1 = weight of empty cup (g) V = volume of cup (mL)