6. Apparatus
6.1 Grease Cup - A chromium-plated brass cup conforming to the dimensions shown in Fig.1.
6.2 Test Tube - A test tube of heat-resistant glass, with rim, 100 to 103 mm in length and 11.1 to 12.7 mm in inside diameter provided with three indentations about 19mm from the bottom, equally spaced on the circumference. The depth of these indentations shall be such as to support the grease cup at about the point shown in Fig.2.
6.3 Thermometers, two, having ranges as shown below and conforming to the requirements prescribed in Specification E1:
Termperature Range ASTM IP
-5 to +300 degree 2C 62C
6.4 Accessories - A stirred oil bath consisting of a 400-mL beaker, a ring stand and ring for support of the oil bath, clamps for thermometers, two corks as illustrated in Fig.2, a polished metal rod 1.2 to 1.6 mm in diameter and 150 to 152 mm in length (Fig.3), a cup plug gage and thermometer depth gage, both shown in Fig. 1. (Warning - The fluid for the oil bath must have a flash point in excess of the maximum temperature at which the bath is to be used and allowance must be made for thermal expansion to prevent overflow. Heating is preferably done by an immersed electrical-resistance heater regulated by voltage control. An open flame must not be used as the heating source.) (Warning - When a hot plate is used, care must be taken to avoid spilling oil on the hot surface.)
7. Sampling
7.1 When ready to test, examine the sample for any indication of non-homogeneity such as oil separation, phase changes, or gross contamination. When any abnormal conditions are noted, obtain a new sample.
