ASTM D1742-06

Standard Test Method for Oil Separation from Lubricating Grease During Storage

SIGNIFICANCE AND USE
When a lubricating grease separates oil, the remaining composition increases in consistency. This can affect the ability of the product to function as designed.
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.
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.
1.3 The values stated in SI units are to be regarded as standard, except for the dimensions in and , where inch-pound units are standard.
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. For a specific hazard statement, see .

General Information

• Status: Historical
• Publication Date: 30-Apr-2006
• ICS: 75.100 - Lubricants, industrial oils and related products
• Technical Committee: D02 - Petroleum Products, Liquid Fuels, and Lubricants
• Drafting Committee: D02.G0.03 - Physical Tests

Relations

• Replaces: ASTM D1742-94(2000)e1 - Standard Test Method for Oil Separation from Lubricating Grease During Storage
• Effective Date: 01-May-2006
• Replaced By: ASTM D1742-06(2013) - Standard Test Method for Oil Separation from Lubricating Grease During Storage
• Effective Date: 01-Dec-2013
• Referred By: ASTM D4049-20 - Standard Test Method for Determining the Resistance of Lubricating Grease to Water Spray
• Effective Date: 01-May-2006
• Referred By: ASTM D8324-21 - Standard Guide for Selection of Environmentally Acceptable Lubricants for the U.S. Environmental Protection Agency (EPA) Vessel General Permit
• Effective Date: 01-May-2006
• Referred By: ASTM D4950-22 - Standard Classification and Specification for Automotive Service Greases
• Effective Date: 01-May-2006
• Referred By: ASTM F2489-06(2022) - Standard Guide for Instrument and Precision Bearing Lubricants—Part 2 Greases
• Effective Date: 01-May-2006
• Referred By: ASTM D6185-11(2017) - Standard Practice for Evaluating Compatibility of Binary Mixtures of Lubricating Greases
• Effective Date: 01-May-2006
• Referred By: ASTM D4732-13(2020) - Standard Specification for Cool-Application Filling Compounds for Telecommunications Wire and Cable
• Effective Date: 01-May-2006

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D1742 − 06
StandardTest Method for
1
Oil Separation from Lubricating Grease During Storage
This standard is issued under the fixed designation D1742; 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 (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 3.1.2 thickener, n—in lubricating grease, a substance com-
posed of finely-divided particles dispersed in a liquid lubricant
1.1 This test method covers the determination of the ten-
to form the product’s structure.
dency of a lubricating grease to separate oil during storage in
3.1.2.1 Discussion—The thickeners can be fibers (such as
both normally filled and partially filled containers.
various metallic soaps) or plates or spheres (such as certain
1.2 This test method is not suitable for greases softer than
non-soapthickeners),whichareinsolubleor,atmost,onlyvery
NLGI No. 1 grade.
slightly soluble in the liquid lubricant. The general require-
ments are that the solid particles be extremely small, uniformly
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 dispersed, and capable of forming a relatively stable, gel-like
structure with the liquid lubricant.
inch-pound units are standard.
1.4 This standard does not purport to address all of the 3.1.3 oil separation, n—the appearance of a liquid fraction
from an otherwise homogeneous lubricating composition.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4. Summary of Test Method
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. For a specific 4.1 The sample of grease, supported on a 75-µm (No. 200)
sieve, is subjected to 1.72 kPa (0.25 psi) air pressure for 24 h
hazard statement, see 7.1.
at25°C(77°F).Anyoilseepagethatoccursdrainsintoabeaker
2. Referenced Documents
and is weighed.
2
2.1 ASTM Standards:
5. Significance and Use
E11 Specification for Woven Wire Test Sieve Cloth and Test
5.1 When a lubricating grease separates oil, the remaining
Sieves
compositionincreasesinconsistency.Thiscanaffecttheability
2.2 Other Standard:
3
of the product to function as designed.
NLGI Grease Consistency Classification
5.2 It has been found that the results of this test correlate
3. Terminology
directly with the oil separation that occurs in 35-lb pails of
3.1 Definitions: grease during storage.
3.1.1 lubricating grease, n—a semi-fluid to solid product of
5.3 This test method is not intended to predict oil separation
a thickener in a liquid lubricant.
tendencies of the grease under dynamic conditions.
3.1.1.1 Discussion—The dispersion of the thickener forms a
two-phase system and immobilizes the liquid lubricant by 6. Apparatus
surface tension and other physical forces. Other ingredients are 4-6
6.1 Test Apparatus —The assembled apparatus consists of
commonly included to impart special properties.
a tightly fitting cup and cover which contains a 75-µm (No.
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This test method is under the jurisdiction of the ASTM Committee D02 on The sole source of supply of Pressure Bleeding Test Cell A known to the
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee committee at this time is Koehler Instrument Company, Inc. 1595 Sycamore
D02.G0.03 on Physical Tests. Avenue, Bohemia, NY 11716. If you are aware of alternative suppliers, please
Current edition approved May 1, 2006. Published May 2006. Originally provide this information toASTM International Headquarters. Your comments will
´1 1
approved in 1960. Last previous edition approved in 2000 as D1742–94 (2000) . receive careful consideration at a meeting of the responsible technical committee,
DOI: 10.1520/D1742-06. which you may attend.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or The sole source of supply of the Pressure Bleeding Test Cell B known to the
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM committee at this time is Stanhope-Seta, London Street, Chertsey, Surrey, KT16
Standards volume information, refer to the standard’s Document Summary page on 8AP, UK. If you are aware of alternative suppliers, please provide this information
the ASTM website. to ASTM International Headquarters. Your comments will receive careful consid-
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Available from NLGI, 4635 Wyandotte St., Kansas City, MO 64112. eration at a meeting of the responsible technical committee, which you may attend.
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