5. Apparatus
5.1 Test Jar, cylindrical, of clear glass, flat bottom, 115 to 125 mm in height. The inside diameter of the jar can range from 30.0 to 32.4 mm, with a wall thickness of 1.6 mm maximum. The jar shall have a line to indicate a sample height 54 +/- 3 mm above the inside bottom.
5.2 Thermometers, having ranges shown below and conforming to the requirements prescribed in Specification E 1.
5.2.1 Since separation of liquid column thermometers occasionally occurs, thermometers should be checked visually immediately prior to the test.
5.3 Cork, to fit the test jar.
5.4 Bath, either an air or liquid bath maintained at the prescribed temperature with a firm support to hold the sample jars vertical. The required bath temperature shall be maintained by refrigeration to within +/- 1°C of the prescribed temperature.
6. Reagents and Materials
6.1 Liquid for temperature reference jar. The following materials are examples of suitable media that remain clear liquids at low temperature and in which the thermometer can be placed.
6.1.1 2 cSt Polyalphaolefin.
6.1.2 Alcohol, Ethanol.
NOTE 1 - Warning: Flammable.