ASTM D1742 – Standard Test Method for Oil Separation from Lubricating Grease During Storage
Description:
Significance and Use
5.1 When a lubricating grease separates oil, the remaining composition increases in consistency. This can affect the ability of the product to function as designed.
5.2 It has been found that the results of this test correlate directly with the oil separation that occurs in 35 lb pails of grease during storage.
5.3 This test method is not intended to predict oil separation tendencies of the grease under dynamic conditions.
Scope
1.1 This test method covers the determination of the tendency of a lubricating grease to separate oil during storage in both normally filled and partially filled containers.
1.2 This test method is not suitable for greases softer than NLGI No. 1 grade.
FIG. 1 Pressure Bleeding Test Cell A
1.3 The values stated in SI units are to be regarded as standard, except for the dimensions in Fig. 2 and Fig. 5, where inch-pound units are standard.
FIG. 2 Detailed Drawing of Pressure Bleeding Test Cell A
NOTE 1: All dimensions are in millimeters (inches).
NOTE 2: Tolerances are ±0.51 mm (0.02 in.) for 2 place decimals, unless otherwise specified.
NOTE 3: Tolerances are ±0.127 mm (0.005 in.) for 3 place decimals, unless otherwise specified.
FIG. 3 Pressure Bleeding Test Cell B
FIG. 4 Pressure Bleeding Test Cell C
FIG. 5 Detailed Drawing of Pressure Bleeding Test Cell C—Strainer Assembly
NOTE 1: All dimensions are in millimeters (inches).
NOTE 2: Tolerances are ±0.51 mm (0.02 in.) for 2 place decimals, unless otherwise specified.
NOTE 3: Tolerances are ±0.127 mm (0.005 in.) for 3 place decimals, unless otherwise specified.
ASTM D1740