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ASTM D6138-07

(Test Method)

Standard Test Method for Determination of Corrosion-Preventive Properties of Lubricating Greases Under Dynamic Wet Conditions (Emcor Test)

Standard Test Method for Determination of Corrosion-Preventive Properties of Lubricating Greases Under Dynamic Wet Conditions (Emcor Test)

SIGNIFICANCE AND USE
This test method is used to assess the ability of grease to prevent corrosion in rolling bearings operated in the presence of distilled water, sodium chloride solution, or synthetic sea water. It is used for development and specification purposes.
SCOPE
1.1 This test method covers the determination of corrosion- preventive properties of greases using grease- lubricated ball bearings under dynamic wet conditions.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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-Jun-2007
ICS
75.100 - Lubricants, industrial oils and related products
Technical Committee
D02 - Petroleum Products, Liquid Fuels, and Lubricants
Drafting Committee
D02.G0.06 - Functional Tests - Contamination
Current Stage
Ref Project

Relations

Replaces
ASTM D6138-03 - Standard Test Method for Determination of Corrosion-Preventive Properties of Lubricating Greases Under Dynamic Wet Conditions (Emcor Test)
Effective Date
01-Jul-2007
Replaced By
ASTM D6138-11 - Standard Test Method for Determination of Corrosion-Preventive Properties of Lubricating Greases Under Dynamic Wet Conditions (Emcor Test)
Effective Date
01-May-2011
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-Jul-2007

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ASTM D6138-07 - Standard Test Method for Determination of Corrosion-Preventive Properties of Lubricating Greases Under Dynamic Wet Conditions (Emcor Test)ASTM D6138-07 - Standard Test Method for Determination of Corrosion-Preventive Properties of Lubricating Greases Under Dynamic Wet Conditions (Emcor Test)
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ASTM D6138-07 - Standard Test Method for Determination of Corrosion-Preventive Properties of Lubricating Greases Under Dynamic Wet Conditions (Emcor Test)
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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: D6138 – 07
Standard Test Method for
Determination of Corrosion-Preventive Properties of
Lubricating Greases Under Dynamic Wet Conditions (Emcor
1
Test)
This standard is issued under the fixed designation D6138; 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* ISO 3696 Water for analytical laboratory use - Specifica-
tions and test methods
1.1 This test method covers the determination of corrosion-
ISO 7120 Petroleum products and lubricants - Petroleum
preventive properties of greases using grease- lubricated ball
oils and other fluids - Determination of rust-preventing
bearings under dynamic wet conditions.
characteristics in the presence of water
1.2 The values stated in SI units are to be regarded as
standard. No other units of measurement are included in this
3. Terminology
standard.
3.1 Definitions:
1.3 This standard does not purport to address all of the
3.1.1 lubricating grease, n—a semifluid to solid product of
safety concerns, if any, associated with its use. It is the
a thickener in a liquid lubricant.
responsibility of the user of this standard to establish appro-
3.1.1.1 Discussion—Thedispersionofthethickenerformsa
priate safety and health practices and determine the applica-
two-phase system and immobilizes the liquid lubricant by
bility of regulatory limitations prior to use.
surface tension and other physical forces. Other ingredients are
2. Referenced Documents commonly included to impart special properties. D217
2
3.1.2 thickener, n—in lubricating grease, a substance com-
2.1 ASTM Standards:
posed of finely-divided particles dispersed in a liquid lubricant
D217 Test Methods for Cone Penetration of Lubricating
to form the product’s structure.
Grease
3.1.2.1 Discussion—The thickeners can be fibers (such as
D665 Test Method for Rust-Preventing Characteristics of
various metallic soaps) or plates or spheres (such as certain
Inhibited Mineral Oil in the Presence of Water
non-soap thickener), which are insoluble or, at most, only very
D1193 Specification for Reagent Water
3
slightly soluble in the liquid lubricant. The general require-
2.2 ISO Standards:
ments are that the solid particles be extremely small, uniformly
ISO 15 Rolling bearings - Radial bearings - Boundary
dispersed, and capable of forming a relatively stable, gel-like
dimensions - General plan
structure with the liquid lubricant. D217
3.2 Definitions of Terms Specific to This Standard:
3.2.1 corrosion, n—red rust or black spots on the race.
1
This test method is under the jurisdiction of ASTM Committee D02 on
3.2.1.1 Discussion—anystainthroughwhichtheunderlying
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
D02.G0.06 on Functional Tests - Contamination.
metal surface is still visible shall be ignored.
Current edition approved July 1, 2007. Published August 2007. Originally
approved in 1997. Last previous edition approved in 2003 as D6138–03. DOI:
4. Summary of Test Method
10.1520/D6138-07.
2
4.1 New, cleaned, and lubricated bearings are tested par-
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
tially immersed in water (distilled, synthetic sea water, or
Standards volume information, refer to the standard’s Document Summary page on
sodium chloride solution) under no applied load at a speed of
the ASTM website.
3
83 6 5 rpm in a predetermined sequence of running and
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
4th Floor, New York, NY 10036, http://www.ansi.org. stopping for a period of approximately one week. After
*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.
1

---------------------- Page: 1 ----------------------
D6138 – 07
cleaning,thebearingringsareexaminedandratedaccordingto 7.7 Solvent Rinse Solution, of the following composition by
the degree of corrosion. volume:
7.7.1 90 % Isopropyl alcohol.
5. Significance and Use
7.7.2 9 % Distilled water.
7.7.3 1 % Ammonium hydroxide, 3.2-mol/L concentration.
5.1 This test method is used to assess the ability of grease to
(Warning—Flammable. Poison. Causes burns. Vapor ex-
prevent corrosion in rolling bearings operated in the presence
tremely irritating. May be fatal if swallowed. Harmful if
of distilled water, sodium chloride solution, or synthetic sea
inhaled.)
water. It is used for development and specification purposes.
7.8 Mineral Spirit, also known as Stoddard
...

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ASTM D6792-23c(Practice)
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5.1 The bromine number is useful as a measure of aliphatic unsaturation in petroleum samples. When used in conjunction with the calculation procedure described in Annex A2, it can be used to estimate the percentage of olefins in petroleum distillates boiling up to approximately 315 °C (600 °F).  
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1.1 This test method3 covers the determination of the bromine number of the following materials:  
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Note 1: These limits are imposed since the precision of this test method has been determined only up to or within the range of these bromine numbers.  
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5.1 The low-temperature, low-shear-rate viscosity of automatic transmission fluids, gear oils, torque and tractor fluids, and industrial and automotive hydraulic oils (see Appendix X4) are of considerable importance to the proper operation of many mechanical devices. Measurement of the viscometric properties of these oils and fluids at low temperatures is often used to specify their acceptance for service. This test method is used in a number of specifications.  
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1.4.2 The viscosity data used for Procedure D precision study was from 6400 mPa·s to 256 000 mPa·s at test temperatures of –26 °C and –40 °C.  
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1.3 Spectra and distribution profiles presented herein are for illustrative purposes only and are not to be construed as representing or establishing lubricant or machinery guidelines.  
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1.4 The several reference elastomer formulations specified in this test method were chosen to be representative of those used in both heavy-duty diesel engines (detailed in Annex A1) and passenger-car spark-ignition engines (the latter are covered in Annex A2). The procedures described in this test method can, however, also be used to evaluate the compatibility of automotive engine oils with different elastomer types/formulations or different test durations and temperatures to those employed in this test method.
Note 2: In such cases, the precision and bias statement in Section 12 does not apply. In addition to agreeing acceptable limits of precision, where relevant, the user and supplier should also agree:  (1) test temperatures and immersion times to be used; (2) the formulations and typical properties of the elastomers; and (3) the sourcing and quality control of the elastomer sheets.
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1.1 This test method covers the determination and evaluation of flow properties, wear levels, contaminants, and oxidative condition of new and in-service lubricating grease.  
1.2 This test method provides guidance on evaluating in-service grease samples, NLGI grades 00 to 3, for wear, consistency, contamination, and oxidation.  
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
1.3.1 Exception—The exception to this will be where units of references were developed by the developers of the test equipment and necessary to report the results of the test.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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ASTM
ASTM D7922-23(Test Method)
Standard Test Method for Determination of Glycol for In-Service Engine Oils by Gas Chromatography

SIGNIFICANCE AND USE
5.1 Some glycol/antifreeze dilution of in-service engine oil is normal under typical operating conditions. However, excessive glycol dilution can lead to decreased performance, premature wear, or sudden engine failure. This test method provides a means of quantifying the level of glycol based antifreeze dilution, allowing the user to take necessary action.
SCOPE
1.1 This test method covers the determination of glycol based antifreeze for in-service engine oil by derivative headspace/gas chromatography.  
1.2 Sample is derivatized in-situ directly in a headspace sampling vial prior to vapor phase extraction and injection into a gas chromatograph.  
1.3 The chemistry of the derivatization is unique to the detection of the molecules of ethylene glycol and 1,2-propylene glycol. 1,3-propylene glycol could also be detected but is not used in any known anti-freeze at this time. Other coolant analyses are beyond the scope of this test method.  
1.4 The derivatization process does not affect glycol breakdown products such as glycolate and formate and hence the presence of these compounds in the oil will not be quantified.  
1.5 The test method concentration range is from 50 µg/g to 1000 µg/g. Lower levels are possible by method modifications. Higher levels are possible through sample dilution.  
1.6 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.7 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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  • Standard
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