Standard Test Method for Oil Separation from Lubricating Grease (Conical Sieve Method)

SIGNIFICANCE AND USE
5.1 When lubricating grease separates oil, the residual material may change in consistency, which can affect the ability of the product to function as designed. Test results obtained with this procedure are not intended to predict oil separation tendencies of grease under dynamic service conditions.  
5.2 This test method is used for specifications and quality control.
Note 1: No data have been developed to compare results between this test method and Test Method D1742.
SCOPE
1.1 This test method covers the determination of the tendency of lubricating grease to separate oil at an elevated temperature. This test method shall be conducted at 100°C for 30 h unless other conditions are required by the grease specification.  
1.2 This test method is suitable for use with most all greases, but the test precision was established using greases having a worked penetration (Test Methods D217) greater than 220 (NLGI No. 3 grade) and less than 340 (NLGI No. 1 grade).  
1.3 The values stated in SI units are to be regarded as standard. The term 60 mesh was originally described in the now withdrawn E437 standard. It is used to describe the wire mesh because there is no exact metric equivalent.  
1.4 This standard does not purport to address all the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety practices and determine the applicability of regulatory limitations prior to use.

General Information

Status
Historical
Publication Date
30-Nov-2014
Current Stage
Ref Project

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ASTM D6184-14 - Standard Test Method for Oil Separation from Lubricating Grease (Conical Sieve Method)
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D6184 − 14
StandardTest Method for
Oil Separation from Lubricating Grease (Conical Sieve
1
Method)
This standard is issued under the fixed designation D6184; 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 U.S. Department of Defense.
INTRODUCTION
The conical sieve method for measuring leakage from lubricating grease (commonly known as the
cone bleed test) uses the same equipment as the now obsolete and withdrawn Federal Test Method
(FTM) 791C Method 321.3, Oil Separation from Lubricating Grease (Static Technique). Despite the
lack of a precision statement, Method 321.3 had been used for many years in military and industrial
grease specifications to determine fluid separation tendencies from greases. Test Method D6184
overcomes the deficiencies of Method 321.3. It reflects the procedures and precision determinations
used in a cooperative study in Subcommittee D02.G0 of Committee D02 and supersedes the FTM
method.
1. Scope 2. Referenced Documents
2
1.1 This test method covers the determination of the ten- 2.1 ASTM Standards:
dency of lubricating grease to separate oil at an elevated D217 Test Methods for Cone Penetration of Lubricating
temperature. This test method shall be conducted at 100°C for Grease
30 h unless other conditions are required by the grease D1742 Test Method for Oil Separation from Lubricating
specification. Grease During Storage
E437 Specification for Industrial Wire Cloth and Screens
1.2 This test method is suitable for use with most all
(Square Opening Series) (Discontinued 2000) Replaced
greases, but the test precision was established using greases
3
by E 2016 (Withdrawn 2000)
having a worked penetration (Test Methods D217) greater than
2.2 Withdrawn Government Standard:
220(NLGINo.3grade)andlessthan340(NLGINo.1grade).
Federal Test Method (FTM) 791C Method 321.3, Oil
1.3 The values stated in SI units are to be regarded as
Separation from Lubricating Greases (Static Method)—
4
standard. The term 60 mesh was originally described in the
Withdrawn 2007
now withdrawn E437 standard. It is used to describe the wire
3. Terminology
mesh because there is no exact metric equivalent.
3.1 Definitions:
1.4 This standard does not purport to address all the safety
concerns, if any, associated with its use. It is the responsibility 3.1.1 lubricating grease, n—a semifluid to solid product of
a dispersion of a thickener in a liquid lubricant.
of the user of this standard to establish appropriate safety
practices and determine the applicability of regulatory limita- 3.1.1.1 Discussion—The dispersion of the thickener forms a
two-phase system and immobilizes the liquid lubricant by
tions prior to use.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
1
This test method is under the jurisdiction of ASTM Committee D02 on contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of Standards volume information, refer to the standard’s Document Summary page on
Subcommittee D02.G0.03 on Physical Tests the ASTM website.
3
Current edition approved Dec. 1, 2014. Published February 2015. Originally The last approved version of this historical standard is referenced on
approved in 1997. Last previous edition approved in 2005 as D6184 – 98 (2005), www.astm.org.
4
which was withdrawn in July 2014 and reinstated in December 2014. DOI: AvailablefromStandardizationDocumentsOrderDesk,Bldg.4SectionD,700
10.1520/D6184-14. Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D6184 − 14
NOTE 1—Dimensions are provided in millimetres (with in./lb. units in parentheses) as follows:
A – 38.1 ± 0.3 (1.50 ± 0.01) radius
B – 27.0 ± 0.3 (1.06 ± 0.01) height
C – 70 (2.8) approximately (to fit beaker)
D – 9.7 ± 3.3 (0.38 ± 0.13) length
E – 100 (4) approximately
F – 36 (1.4) approximately
FIG. 1 Cone Fabrication and Test Setup
surface tension and other physical forces. Other ingredients 5.2 This test method is used for specifications and quality
imparting special properties are often included. D217 control.
3.1.2 oil separation, n—the appearance of a liquid fraction
NOTE 1—No data have been developed to compare results between this
from an otherwise homogeneous lubricating composition.
test method and Test Method D1742.
D1742
6. Apparatus
3.1.3 thickener, n—in a lubricating
...

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