ASTM D1264 test method for water washout characteristics of lubricating greases
5. Apparatus
5.1 Ball Bearing, ASTM test bearing size 6204 (see ADJD3336).
5.2 Bearing Housing and Shield with dimensions as shown in Fig. 1.
5.3 Reservoir, Bearing-Housing Mount, Circulating Pump, and Drive Motor, similar or equivalent to those shown in Fig. 1. Table 1 provides the metric equivalents.
5.4 Heating Source, to maintain the water temperature at 79 more or less 1.7°C (175 more or less 3°F).
NOTE 1 - Suitable temperature control may be obtained by the use of immersion heaters, steam coils, or infrared heat lamps, in conjunction with transformers or thermostats.
5.5 Thermometer or Thermocouple, to determine the temperature of the water reservoir.
6. Materials and Reagents
6.1 Purity of Reagents - Reagent grade chemicals shall be used in all tests. Unless otherwise indicated, it is intended that all reagents shall conform to the specifications of the committee on Analytical Reagents of the American Chemical Society, where such specifications are available. Other grades may be used, provided it is first ascertained that the reagent is of sufficiently high purity to permit its use without lessening the accuracy of the determination.
6.2 Distilled Water.
6.3 Cleaning Solvent - Capable of sufficiently cleaning the test bearing for use in the test. Either reagent grade Stoddard solvent, also known as Mineral Spirits, (Warning - Combustible. Vapor harmful), or American Chemical Society reagent grade n-heptane (Warning - Flammable. Harmful if inhaled) has been found suitable for use.
7. Preparation of Apparatus
7.1 Clean the reservoir and water passages by flushing with distilled water. Wipe off any oil scum which has been deposited on the surfaces of the reservoir. Clean the test bearing with cleaning solvent (see 6.3).
