ASTM D1367-96
(Test Method)Standard Test Method for Lubricating Qualities of Graphites
Standard Test Method for Lubricating Qualities of Graphites
SCOPE
1.1 This test method covers evaluation of the abrasive properties of graphites that are used for lubricating purposes.
1.2 The values stated in SI units are to be regarded as the standard. The values stated in parentheses are for information only.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 1367 – 96 An American National Standard
Standard Test Method for
Lubricating Qualities of Graphites
This standard is issued under the fixed designation D 1367; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This test method covers evaluation of the abrasive
properties of graphites that are used for lubricating purposes.
1.2 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
1.3 The values stated in SI units are to be regarded as the
standard. The values stated in parentheses are for information
only.
2. Summary of Test Method
2.1 A representative sample of the graphite is suspended in
mineral oil, and the mixture containing 15 % by weight of
graphite is circulated through a ball bearing by means of an
impeller and duct assembly. The bearing shaft is driven at 1750
rpm for a period of 2 h. The loss in weight of the bearing is
determined.
3. Significance and Use
3.1 This test method can be used to determine the relative
abrasiveness of graphites under the test conditions, and if the
FIG. 1 Graphite Lubricant Tester
test conditions are changed, the relative ratings may be
different. No correlation has been established between this test
method and field service.
4.1.2 Motor, capable of driving the test bearing at 1750 6
50 rpm, and equipped with a coupling which may readily be
4. Apparatus
detached from the shaft described in 4.1.1.
4.1 Graphite Lubricant Tester, as illustrated in Fig. 1,
4.1.3 Griffın Beaker, 400-mL, 75 mm in diameter, or a metal
consisting of the following:
container of similar dimensions.
4.1.1 Bearing Holder Assembly, as shown in Fig. 2. It
4.1.4 Stand, designed to support the equipment referred to
consists of a shaft on which the bearing is mounted, a propeller
in 4.1.1, 4.1.2, and 4.1.3 in a rigid vertical position.
at the end of the shaft to maintain the graphite in uniform
4.2 Transfer Pipet, 50-mL, provided with a rubber bulb.
suspension, and a duct to direct the flow of fluid through the
bearing. The duct, in two sections, is arranged in the form of a 5. Reagents and Materials
cylinder around the bearing. The upper section of the cylinder,
5.1 Double-Row Ball Bearing, without closure (seal) having
containing three port holes, is permanently mounted. The lower
an internal bore of 12.00 mm (0.4724 in.), a diameter of 32.0
section, which is removable, widens to a bell shape around the
mm (1.2598 in.), and a width of 15.875 mm (0.6250 in.). Seven
propeller.
balls, each having a diameter of 5.97 mm (0.235 in.) are fitted
into each race and retained with a steel separator.
This test method is under the jurisdiction of ASTM Committee D-2 on
5.2 Paraffın Oil, having a viscosity of 20.53 to 22.85 cSt
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
D02.L on Joint ASTM-ASLE Committee on Industrial Lubricants.
Current edition approved Apr. 10, 1996. Published June 1996. Originally
published as D 1367 – 55 T. Last previous edition D 1367 – 90. New Departure Bearing No. 5201 has been found to be satisfactory. A similar
Detail drawings of the apparatus are available at a nominal cost from ASTM. bearing NSK without closures meets these design and dimensional requirements. In
Request Adjunct No. ADJD1367. the case of referee tests, bearings from the same manufacturer should be used.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
D 1367
7.3 Using the 400-mL-Griffin beaker, prepare a mixture of
36 6 0.1 g of the sample graphite and 204 6 0.1 g of the
mineral oil (see 5.2).
7.4 Disperse the graphite in the oil by stirring with a spatula
until scraping of the bottom of the beaker shows no aggregates
of graphite.
7.5 When uniform suspension of the graphite has been
achieved, place the beaker in the seat provided in the base plate
of the stand. Then lower the bearing assembly into the beaker
until there is a 6.4-mm (0.25-in.) clearance between the bottom
of the bell section of the duct and the beaker.
7.6 By means of the pipet, draw off a sufficient quantity of
the mixture to lower the level of the liquid to coincide with the
oil level mark on the upper section of the cylinder duct. When
the liquid is at this level, one-half of the area of each port hole
is covered by the mixture.
NOTE 2—The level of the mixture may rise during the test to a point
almost completely covering the port hole. This is due to thermal expansion
and aeration of the mixture.
7.7 Turn on the motor and operate the bearing, revolving
counterclockwise for 2 h 6 5 min.
7.8 At the end of the test period, dismantle the apparatus.
Wash the bearing in solvent selected in 5.3 for 1 min. Transfer
to a second beaker of solvent and rinse. Dry the bearing in an
oven at 98.9 to 104°C (210 to 220°F) for a period of ⁄2 h.
7.9 After the dry bearing has been brought to room tem-
perature in a desiccator, weigh it to the nearest 0.1 mg. Repeat
FIG. 2 Bearing Holder Assembly
the cleaning and drying operations as described in Secti
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.