ASTM D2273-97(2002)e2

Standard Test Method for Trace Sediment in Lubricating Oils

SCOPE
1.1 This test method covers the determination of trace amounts (less than 0.05 volume %) of sediment in lubricating oils. Since oil-soluble material precipitated by the specified solvent is not intended as part of the measured sediment, the test method is not applicable in cases where precipitated oil-soluble components will appreciably contribute to the sediment readings.
1.2 The values stated in acceptable SI units are to be regarded as the standard.
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

• Status: Historical
• Publication Date: 09-Dec-2002
• ICS: 75.100 - Lubricants, industrial oils and related products
• Technical Committee: D02 - Petroleum Products, Liquid Fuels, and Lubricants
• Drafting Committee: D02.06 - Analysis of Liquid Fuels and Lubricants

Relations

• Replaces: ASTM D2273-97(2002)e1 - Standard Test Method for Trace Sediment in Lubricating Oils
• Effective Date: 10-Dec-2002
• Replaced By: ASTM D2273-05 - Standard Test Method for Trace Sediment in Lubricating Oils
• Effective Date: 01-Nov-2005
• Referred By: ASTM F2332-06(2022) - Standard Specification for Annular Ball Bearings for Instruments and Precision Rotating Components
• Effective Date: 10-Dec-2002
• Referred By: ASTM D6224-22 - Standard Practice for In-Service Monitoring of Lubricating Oil for Auxiliary Power Plant Equipment
• Effective Date: 10-Dec-2002
• Referred By: ASTM D8506-23 - Standard Guide for Microbial Contamination and Biodeterioration in Turbine Oils and Turbine Oil Systems
• Effective Date: 10-Dec-2002
• Referred By: ASTM D4378-22 - Standard Practice for In-Service Monitoring of Mineral Turbine Oils for Steam, Gas, and Combined Cycle Turbines
• Effective Date: 10-Dec-2002

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
An American National Standard
e2
Designation:D2273–97 (Reapproved 2002)
Standard Test Method for
Trace Sediment in Lubricating Oils
This standard is issued under the fixed designation D 2273; 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.
This standard has been approved for use by agencies of the Department of Defense.
e NOTE—Warning notes were editorially moved into the standard text in March 2003.
e NOTE—Restored correct reproducibility information in 10.1.2 editorially in November 2004.
1. Scope 3.1.1 trace sediment, n—the number of millilitres of sedi-
ment precipitated from 100 mLof oil sample (volume percent)
1.1 This test method covers the determination of trace
when equal parts of the oil sample and the specified solvent are
amounts (less than 0.05 volume %) of sediment in lubricating
mixed and centrifuged under the prescribed conditions.
oils. Since oil-soluble material precipitated by the specified
solvent is not intended as part of the measured sediment, the
4. Significance and Use
test method is not applicable in cases where precipitated
4.1 This test measures the trace level amount of sediment
oil-soluble components will appreciably contribute to the
that is naphtha-insoluble and can be separated by centrifuging.
sediment readings.
Excessive amounts of sediment in oil could lead to system
1.2 The values stated in acceptable SI units are to be
malfunction in critical applications.
regarded as the standard.
1.3 This standard does not purport to address all of the
5. Apparatus
safety concerns, if any, associated with its use. It is the
5.1 Centrifuge, meeting all the safety requirements for
responsibility of the user of this standard to establish appro-
normal use and capable of whirling two or more filled
priate safety and health practices and determine the applica-
centrifuge tubes at a speed which can be controlled to give a
bility of regulatory limitations prior to use.
relative centrifugal force (rcf) between 600 and 700 at the tip
2. Referenced Documents of the tubes. The revolving head, trunnion rings, and trunnion
cups, including the rubber cushion, shall be soundly con-
2.1 ASTM Standards:
structedtowithstandthemaximumcentrifugalforcecapableof
D 86 Test Method for Distillation of Petroleum Products at
2 being delivered by the power source. The trunnion cups and
Atmospheric Pressure
cushions shall firmly support the tubes when the centrifuge is
D 611 Test Methods for Aniline Point and Mixed Aniline
2 inmotion.Thecentrifugeshallbeenclosedbyametalshieldor
Point of Petroleum Products and Hydrcarbon Solvents
case strong enough to eliminate danger if any breakage occurs.
D 1298 Test Method for Density, Relative Density (Specific
Calculate the speed of the rotating head as follows:
Gravity), or API Gravity of Crude Petroleum and Liquid
Petroleum Products by Hydrometer Method
rpm 5 1337 =rcf/d (1)
D 4057 Practice for Manual Sampling of Petroleum and
where:
Petroleum Products
D 4177 Practice for Auomatic Sampling of Petroleum and
Petroleum Products rcf = relative centrifugal force, and
d = diameter of swing, in millimetres, measured between
3. Terminology
tips of opposite tubes when in rotating position.
3.1 Definitions of Terms Specific to This Standard: The relationship between the diameter swing, relative cen-
trifugal force, and revolutions per minute is given in Table 1.
5.2 Centrifuge Tube, cone-shaped, conforming to the di-
This test method is under the jurisdiction of ASTM Committee D02 on
mensions given in Fig. 1, and made of thoroughly annealed
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
D02.06 on Analysis of Lubricants. glass. The graduations, numbered as shown in Fig. 1, shall be
Current edition approved Dec. 10, 2002. Published March 2003. Originally
clearanddistinct,andthemouthshallbeconstructedinashape
approved in 1964. Last previous edition approved in 1997 as D 2273 – 97.
suitable for closure with a cork. Scale-error tolerances and
Annual Book of ASTM Standards, Vol 05.01.
smallest graduations between various calibration marks are
Annual Book of ASTM Standards, Vol 05.02.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
e2
D2273–97 (2002)
TABLE 1 Rotation Speeds for Centrifuges of Various Diameters TABLE 3 Naphtha
A
Diameter of Swing, mm RPM at 600 rcf RPM at 700 rcf ASTM
Test Requirement
Designation
483 1490 1610
508 1450 1570 Density at 15°C 0.692 to 0.702 D 1298
533 1420 1530 Aniline Point 58 to 60°C D611
Initial Boiling Point not less than 50°C D86
559 1390 1500
50 % Point 70 to 80°C D86
A
Measured in mm between tips of opposite tubes when rotating-position.
End Point not more than 130°C D86
7.2 The sample shall be thoroughly representative of the
material in question and the portion used for the test shall be
thoroughly representative of the sample itself. This requires
vigorous agitation of the sample immediately before transfer-
ring the sample to the tube. The difficulties in obtaining
representative samples for this determination are unusually
great; hence, the importance of sampling cannot be too
strongly emphasized.
8. Procedure
8.1 Measure 50 61 mL of precipitation naphtha.
(Warning—Extremely flammable.) In each of two clean, dry
centrifuge tubes at room temperature.T
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