Kimble 15123R KIMAX Pycnometer Specific Gravity Bottles are supplied with a special medium length Standard Taper 10/18 thermometer with a range of 14 to 38 degrees C in 0.2 degrees. Thermometers are mercury-filled. Retested for accuracy within ± 0.2 degrees C. Cap for the side tube is medium length Standard Taper 5/12 and has a small vent near the top. Body is conical for maximum stability, and capacity is within 10 percent of nominal shown on the flask. Each flask body is numbered for ready identification. The 50 mL size is used to obtain the specific gravity of pigments (ASTM D153).