ASTM D4049-06

Standard Test Method for Determining the Resistance of Lubricating Grease to Water Spray

SIGNIFICANCE AND USE
This test method is used to evaluate the ability of a grease to adhere to a metal surface when subjected to direct water spray. The results obtained from the use of this test method suggest correlation in operations involving direct water spray impingement such as steel mill roll neck bearing service.4 This test method is used for quality control and purchase specifications.
SCOPE
1.1 This test method covers the ability of a grease to adhere to a metal surface when subjected to a water spray under prescribed laboratory 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: 31-Oct-2006
• 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

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
Designation:D4049–06
Standard Test Method for
Determining the Resistance of Lubricating Grease to Water
1
Spray
This standard is issued under the fixed designation D4049; 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* 3.1.1.1 Discussion—Thedispersionofthethickenerformsa
2 two-phase system and immobilizes the liquid by surface
1.1 Thistestmethod coverstheabilityofagreasetoadhere
tension and other physical forces. Other ingredients are com-
to a metal surface when subjected to a water spray under
monly included to impart special properties. D217
prescribed laboratory conditions.
3.1.2 oil separation, n—the appearance of a liquid fraction
1.2 The values stated in SI units are to be regarded as
from an otherwise homogeneous lubricating composition.
standard. The values given in parentheses are for information
D1742
only.
3.1.3 thickener, n—in lubricating grease, a substance com-
1.3 This standard does not purport to address all of the
posed of finely divided particles dispersed in a liquid lubricant
safety concerns, if any, associated with its use. It is the
to form the product’s structure.
responsibility of the user of this standard to establish appro-
3.1.3.1 Discussion—The thickeners can be fibers (such as
priate safety and health practices and determine the applica-
various metallic soaps) or plates or spheres (such as certain
bility of regulatory limitations prior to use.
non-soapthickeners),whichareinsolubleor,atmost,onlyvery
2. Referenced Documents slightly soluble in the liquid lubricant. The general require-
3
ments are that the solid particles be extremely small, uniformly
2.1 ASTM Standards:
dispersed, and capable of forming a relatively stable, gel-like
D217 Test Methods for Cone Penetration of Lubricating
structure with the liquid lubricant. D217
Grease
D1742 Test Method for Oil Separation from Lubricating
4. Summary of Test Method
Grease During Storage
4.1 The grease to be tested is coated on a stainless steel
E691 Practice for Conducting an Interlaboratory Study to
panel and sprayed with water at the specified test temperature
Determine the Precision of a Test Method
and pressure. The amount of grease remaining on the panel
3. Terminology
after 5 min 6 15 s is a measure of the resistance of the grease
to water spray.
3.1 Definitions:
3.1.1 lubricating grease, n—a semi-fluid to solid product of
5. Significance and Use
a thickener in a liquid lubricant.
5.1 This test method is used to evaluate the ability of a
grease to adhere to a metal surface when subjected to direct
1
This test method is under the jurisdiction of ASTM Committee D02 on
water spray. The results obtained from the use of this test
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
methodsuggestcorrelationinoperationsinvolvingdirectwater
D02.G0.06 on Functional Tests - Contamination.
spray impingement such as steel mill roll neck bearing ser-
Current edition approved Nov. 1, 2006. Published November 2006. Originally
4
approved in 1981. Last previous edition approved in 2004 as D4049–99(2004).
vice. This test method is used for quality control and purchase
DOI: 10.1520/D4049-06.
specifications.
2
The development of this test method is described in Musilli, T. G., “Water
Spray-Off Characteristics of Lubricating Grease,” NLGI Spokesman, December
1982, pp. 323–326.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM A. E. Cichelli, “Evaluation of Greases for Steel Mill Service,” NLGI Spokes-
Standards volume information, refer to the standard’s Document Summary page on man, August 1973, and A. E. Cichelli, “Grease Lubrication in Steel Mills with
the ASTM website. Emphasis on Roll Neck Bearings,” NLGI Spokesman, April 1980.
*A Summary of Changes section appears at the end of this standard.
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D4049–06
DIMENSIONS
in. mm
A Overall panel length 6.0 152.4
B Raised section length 4.0 101.6
C Width 2.000 - 0.002 50.8 - 0.05
03
D Thickness ⁄16 6 0.003 4.76 6 0.08
1
E Reduced section thickness ⁄16 1.59
F Reduced section length 1.0 25.4
NOTE—All tolerances 60.03 mm unless otherwise specified.
FIG. 1 Stainless Steel Test Panel
5
6. Apparatus
6.1 Stainless Steel Test Panel, 18-8 (chromium-nickel)
stainless steel, as shown in Fig. 1.
6.1.1 Grease Application Jig, for applying grease to panel;
Fig. 2.
6.2 Water Spray Apparatus, as shown in
...