ASTM D5969-11(2016)
(Test Method)Standard Test Method for Corrosion-Preventive Properties of Lubricating Greases in Presence of Dilute Synthetic Sea Water Environments
Standard Test Method for Corrosion-Preventive Properties of Lubricating Greases in Presence of Dilute Synthetic Sea Water Environments
SIGNIFICANCE AND USE
5.1 This test method differentiates the relative corrosion-preventive capabilities of lubricating greases under the test conditions.
SCOPE
1.1 This test method covers the determination of the corrosion-preventive properties of greases using grease-lubricated tapered roller bearings exposed to various concentrations of dilute synthetic sea water stored under wet conditions. It is based on Test Method D1743, which is practiced using a similar procedure and distilled water. The reported result is a pass or fail rating as determined by at least two of three bearings.
1.2 Apparatus Dimensions—The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 All Other Values—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 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.
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Designation: D5969 − 11 (Reapproved 2016)
Standard Test Method for
Corrosion-Preventive Properties of Lubricating Greases in
1
Presence of Dilute Synthetic Sea Water Environments
This standard is issued under the fixed designation D5969; 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.
1. Scope 3.1.1 corrosion—the chemical or electrochemical reaction
between a material, usually a metal, and its environment that
1.1 This test method covers the determination of the
produces a deterioration of the material and its properties.
corrosion-preventive properties of greases using grease-
3.1.1.1 Discussion—In this test method, corrosion is mani-
lubricated tapered roller bearings exposed to various concen-
fested by red rust or black stains on the bearing race. Stains,
trations of dilute synthetic sea water stored under wet condi-
through which the underlying metal surface is still visible, are
tions. It is based on Test Method D1743, which is practiced
not considered corrosion in Test Method D5969 and shall be
using a similar procedure and distilled water. The reported
ignored. D1743
result is a pass or fail rating as determined by at least two of
three bearings.
4. Summary of Test Method
1.2 Apparatus Dimensions—The values stated in inch-
4.1 New, cleaned, and lubricated bearings are run under a
pound units are to be regarded as standard.The values given in
light thrust load for 60 s 6 3 s to distribute the lubricant in a
parentheses are mathematical conversions to SI units that are
pattern that might be found in service. The bearings are
provided for information only and are not considered standard.
exposedtoasolutionofsyntheticseawateratsomepercentage
1
1.3 All Other Values—The values stated in SI units are to be
in distilled water, then stored for 24 h 6 ⁄2hat52°C 61°C
regarded as standard. No other units of measurement are
and 100 % relative humidity. After cleaning, the bearing cups
included in this standard.
are examined for evidence of corrosion.
1.4 This standard does not purport to address all of the
5. Significance and Use
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- 5.1 This test method differentiates the relative corrosion-
priate safety and health practices and determine the applica- preventive capabilities of lubricating greases under the test
bility of regulatory limitations prior to use.
conditions.
2. Referenced Documents
6. Apparatus
2
2.1 ASTM Standards:
6.1 Bearings, Timken bearing cone and roller assembly
3
D665 Test Method for Rust-Preventing Characteristics of
LM11949 and cup LM11910.
Inhibited Mineral Oil in the Presence of Water
1
6.2 Motor, 1750 r⁄min (approximate) speed, ⁄15 hp (min).
D1193 Specification for Reagent Water
6.3 Bearing Holder,(seeFig.1)consistsofa1 kg 60.01 kg
D1743 Test Method for Determining Corrosion Preventive
mass, upper and lower plastic collars for the bearing cone
Properties of Lubricating Greases
(PartsAand B), a metal screw, and a plastic collar for the cup
3. Terminology
(Part C).
3.1 Definitions of Terms Specific to This Standard:
6.4 Plastic Test Jar, as shown in Fig. 2.
4
6.5 Run-in Stand, as shown in Fig. 3.
1
This test method is under the jurisdiction of ASTM Committee D02 on 3
6.6 Spindle/Thrust Loading Device, as shown in Fig. 4.
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
Subcommittee D02.G0.06 on Functional Tests - Contamination.
Current edition approved Oct. 1, 2016. Published November 2016. Originally
ɛ1
3
approved in 1996. Last previous edition approved in 2011 as D5969 – 11 . DOI: Manufactured by the Timken Co., Canton, OH 44706.
4
10.1520/D5969-11R16. The sole source of supply of the apparatus known to the committee at this time
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or is Falex Corp., 1020 Airpark Drive, Sugar Grove, IL, 60554. If you are aware of
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM alternative suppliers, please provide this information to ASTM International
Standards volume information, refer to the standard’s Document Summary page on Headquarters.Your comments will receive careful consideration at a meeting of the
1
the ASTM website. responsible technical committee, which you may attend.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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---------------------- Page: 1 ----------------------
D5969 − 11 (2016)
KEY DESCRIPTION QUANTITY
1 PISTON 1
2 O RING 1
3 WEIGHT 1
4 UPPER FLANGE 1
5
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
´1
Designation: D5969 − 11 D5969 − 11 (Reapproved 2016)
Standard Test Method for
Corrosion-Preventive Properties of Lubricating Greases in
1
Presence of Dilute Synthetic Sea Water Environments
This standard is issued under the fixed designation D5969; 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.
1
ε NOTE—Fig. 6 was editorially reinstated in January 2013.
1. Scope*Scope
1.1 This test method covers the determination of the corrosion-preventive properties of greases using grease-lubricated tapered
roller bearings exposed to various concentrations of dilute synthetic sea water stored under wet conditions. It is based on Test
Method D1743, which is practiced using a similar procedure and distilled water. The reported result is a pass or fail rating as
determined by at least two of three bearings.
1.2 Apparatus Dimensions—The values stated in inch-pound units are to be regarded as standard. The values given in
parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 All Other Values—The values stated in SI units are to be regarded as standard. No other units of measurement are included
in this standard.
1.4 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D665 Test Method for Rust-Preventing Characteristics of Inhibited Mineral Oil in the Presence of Water
D1193 Specification for Reagent Water
D1743 Test Method for Determining Corrosion Preventive Properties of Lubricating Greases
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 corrosion—the chemical or electrochemical reaction between a material, usually a metal, and its environment that
produces a deterioration of the material and its properties.
1
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products Products, Liquid Fuels, and Lubricants and is the direct responsibility of
Subcommittee D02.G0.06 on Functional Tests - Contamination.
Current edition approved May 1, 2011Oct. 1, 2016. Published May 2011November 2016. Originally approved in 1996. Last previous edition approved in 20082011 as
ɛ1
D5969D5969 – 11 –08. DOI: 10.1520/D5969-11.10.1520/D5969-11R16.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3.1.1.1 Discussion—
In this test method, corrosion is manifested by red rust or black stains on the bearing race. Stains, through which the underlying
metal surface is still visible, are not considered corrosion in Test Method D5969 and shall be ignored. D1743
4. Summary of Test Method
4.1 New, cleaned, and lubricated bearings are run under a light thrust load for 6060 s 6 3 s 3 s to distribute the lubricant in a
pattern that might be found in service. The bearings are exposed to a solution of synthetic sea water at some percentage in distilled
1
water, then stored for 2424 h 6 ⁄2 h h at 5252 °C 6 1°C1 °C and 100 % relative humidity. After cleaning, the bearing cups are
examined for evidence of corrosion.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D5969 − 11 (2016)
5. Significance and Use
5.1 This test method differentiates the relative corrosion-preventive capabilities of lubricating greases under the test conditions.
6. Apparatus
3
6.1 Bearings, Timken bearing cone and roller assembly LM11949 and cup LM11910.
1
6.2 Motor, 1750-rpm1750 r ⁄min (approximate) speed, ⁄15 hp hp (min).
6.3 Bearing Holder, (see Fig. 1) consists of a 11 kg 6 0.01-kg0.01 kg mass, upper and lower plastic collars for the bearing cone
(Parts A and B), a metal screw, and a plastic collar for the cup (Part C).
6.4 Plastic Test Jar, as shown in Fig. 2.
4
6.5 Run-in Stand, as shown in Fig. 3.
3
6.6 Spindle/Thrust Loading D
...
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