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ASTM D6973-05

(Test Method)

Standard Test Method for Indicating Wear Characteristics of Petroleum Hydraulic Fluids in a High Pressure Constant Volume Vane Pump

Standard Test Method for Indicating Wear Characteristics of Petroleum Hydraulic Fluids in a High Pressure Constant Volume Vane Pump

SIGNIFICANCE AND USE
This test method is an indicator of the wear characteristics of petroleum hydraulic fluids operating in a constant volume vane pump. Excessive wear in vane pumps could lead to malfunction of hydraulic systems in critical industrial or mobile hydraulic applications.
SCOPE
1.1 This test method covers a constant volume high-pressure vane pump test procedure for indicating the wear characteristics of petroleum hydraulic fluids. See Annex A1 for recommended testing conditions for water-based synthetic fluids.
1.2 The values stated in SI units are to be regarded as standard. The values 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

Status
Historical
Publication Date
30-Apr-2005
ICS
75.120 - Hydraulic fluids
Technical Committee
D02 - Petroleum Products, Liquid Fuels, and Lubricants
Current Stage
Ref Project

Relations

Replaces
ASTM D6973-04e1 - Standard Test Method for Indicating Wear Characteristics of Petroleum Hydraulic Fluids in a High Pressure Constant Volume Vane Pump
Effective Date
01-May-2005
Replaced By
ASTM D6973-08 - Standard Test Method for Indicating Wear Characteristics of Petroleum Hydraulic Fluids in a High Pressure Constant Volume Vane Pump
Effective Date
01-Feb-2008
Referred By
ASTM D6158-18 - Standard Specification for Mineral Hydraulic Oils
Effective Date
01-May-2005
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-2005

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ASTM D6973-05 - Standard Test Method for Indicating Wear Characteristics of Petroleum Hydraulic Fluids in a High Pressure Constant Volume Vane PumpASTM D6973-05 - Standard Test Method for Indicating Wear Characteristics of Petroleum Hydraulic Fluids in a High Pressure Constant Volume Vane Pump
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ASTM D6973-05 - Standard Test Method for Indicating Wear Characteristics of Petroleum Hydraulic Fluids in a High Pressure Constant Volume Vane Pump
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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
An American National Standard
Designation:D6973–05
Standard Test Method for
Indicating Wear Characteristics of Petroleum Hydraulic
1
Fluids in a High Pressure Constant Volume Vane Pump
This standard is issued under the fixed designation D 6973; 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 Hydraulic Fluid Power—Use of Fire-Resistant Fluids in
4
Industrial Systems
1.1 This test method covers a constant volume high-
pressure vane pump test procedure for indicating the wear
3. Terminology
characteristics of petroleum hydraulic fluids. SeeAnnexA1 for
3.1 Definitions of Terms Specific to This Standard:
recommended testing conditions for water-based synthetic
3.1.1 flushing, v—the process of cleaning the test system
fluids.
before testing to prevent cross-contamination.
1.2 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
4. Summary of Test Method
only.
4.1 Hydraulic fluid in the amount of 190 6 4 L(50 6 1 gal)
1.3 This standard does not purport to address all of the
is circulated through a rotary vane pump system for 50 h at a
safety concerns, if any, associated with its use. It is the
pump speed of 2400 6 20 r/min and a pump outlet pressure of
responsibility of the user of this standard to establish appro-
20.7 6 0.2 MPa (3000 6 20 psig). Fluid temperature at the
priate safety and health practices and determine the applica-
pump inlet is 95 6 3°C (203 6 5°F).An ISO Grade 32 or 10W
bility of regulatory limitations prior to use.
viscosity is required.
4.2 The cam ring and all ten vanes should be individually
2. Referenced Documents
2
weighed before and after the test. The weight loss of the cam
2.1 ISO Standards:
ring should be reported with the combined weight loss of all
ISO 4021 Hydraulic Fluid Power—Particulate Contamina-
ten vanes. The intra-vanes (inserts) are not part of the required
tionAnalysis—Extraction of Fluid Samples from Lines of
weight loss measurements and should be separately measured
an Operating System
if desired. Other reported values are fluid cleanliness before
ISO 4406 Hydraulic Fluid Power—Fluids—Method for
and after the test, initial flow rate, and final flow rate.
Coding the Level of Contamination by Solids Particles
4.3 Prior to installing the hydraulic test fluid into the rig, a
ISO 7745 Hydraulic Fluid Power—Fire-Resistant (FR)
stand flush is required to remove any contaminants. A mini-
Fluids—Guidelines for Use
mum quantity of 190 6 4 L (50 6 1 gal) of fluid (see Note 1)
ISO 11171 Hydraulic Fluid Power—Calibration of Auto-
made of the same chemical formulation as the test fluid, is
matic Particle Counters for Liquids
required for the stand flush. Therefore the total quantity of oil
ISO 11500 Hydraulic Fluid Power—Determination of Par-
required for the test is 380 L (100 gal).
ticulate Contamination by Automatic Counting Using the
Light Extinction Principle
5. Significance and Use
2.2 Other Documents:
3 5.1 This test method is an indicator of the wear character-
SAE 100R13–20 Hydraulic Hose Specification
istics of petroleum hydraulic fluids operating in a constant
ANSI/(NFPA) T2.13.1 R3-1998 Recommended Practice—
volume vane pump. Excessive wear in vane pumps could lead
to malfunction of hydraulic systems in critical industrial or
1
mobile hydraulic applications.
This test method is under the jurisdiction of ASTM Committee D02 on
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
D02.N0 on Lubricating Properties. 6. Apparatus
Current edition approved May 1, 2005. Published May 2005. Originally
e1 6.1 The basic system consists of the following (see Fig. 1):
approved in 2003. Last previous edition approved in 2004 as D 6973–04 .
2
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
4th Floor, New York, NY 10036.
3 4
Available from Society of Automotive Engineers (SAE), 400 Commonwealth Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
Dr., Warrendale, PA 15096-0001. 4th Floor, New York, NY 10036.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D6973–05
Description of Components:
1 Reservoir (50 gal of oil; elevated above pump centerline to provide gravity feed)
2 Temperature gage or thermocouple
3 Inlet pressure gage
4 Pump: 35VQ25A-11*20 (Cartridge kit P/N 4998040–002)
5 Electric motor (125 hp)
6 Outlet pressure gage
7 Pressure relief valve
8 Filter
9 Cooler
10 Flowmeter
7
NOTE—See Eaton Overhaul Manual I-31
...

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5.1 This test method is an indicator of the wear characteristics of non-petroleum and petroleum hydraulic fluids operating in a constant volume vane pump. Excessive wear in vane pumps could lead to malfunction of hydraulic systems in critical applications.
SCOPE
1.1 This test method covers a constant volume vane pump test procedure operated at 1200 r/min and 13.8 MPa.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.2.1 Exception—There are no SI equivalents for the inch fasteners and inch O-rings that are used in the apparatus in this test method.  
1.2.2 Exception—In some cases English pressure values are given in parentheses as a safety measure.  
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5.1 This practice allows the collection of a representative sample of LPG that may contain trace volatile dissolved components such as methane, ethane, and nitrogen. Sampling by Practice D1265 can result in a small, but predictable, loss of these lighter components. Practice D1265 is suitable for collecting samples for routine specification testing, as the small loss of light components is not significant under Specification D1835 specification requirements. Practice D3700 is recommended whenever highly accurate determination of light components is required. For example, compositions determined on samples collected according to Practice D3700 may be used to establish the product value of NGL mixtures (see Appendix X1).
SCOPE
1.1 This practice covers the equipment and procedures for obtaining a representative sample of liquefied petroleum gas (LPG), such as specified in ASTM Specification D1835, GPA 2140, and comparable international standards. It may also be used for other natural gas liquid (NGL) products that are normally single phase (for example, NGL mix, field butane, and so forth), defined in other industry specifications or contractual agreements, and for volatile (higher vapor pressure) crude oils.
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