ASTM-D6184 Standard Test Method for Oil Separation from Lubricating Grease (Conical Sieve Method)

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Standard Test Method for Oil Separation from Lubricating Grease (Conical Sieve Method)



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1.1 This test method covers the determination of the tendency of lubricating grease to separate oil at an elevated temperature. This test method shall be conducted at 100 °C for 30 h unless other conditions are required by the grease specification.

1.2 This test method can be used on any grease with a worked penetration (Test Methods D217) greater than 220 mm/10 (NLGI Consistency Number 3 or softer). However, no precision data exists for greases with a penetration greater than 340 mm/10 (softer than NLGI Consistency Number 1).

1.3 The values stated in SI units are to be regarded as standard. The term 60 mesh is used to describe the wire mesh used. This unit was described in the withdrawn E437 standard and there is no exact metric equivalent.

1.4 This standard does not purport to address all the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety 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.

Significance and Use

5.1 When lubricating grease separates oil, the residual material may change in consistency, which can affect the ability of the product to function as designed. Test results obtained with this procedure are not intended to predict oil separation tendencies of grease under dynamic service conditions.

5.2 This test method is used for specifications and quality control.


cone-bleed test; leakage; lubricating grease; oil bleed; oil separation;; ICS Number Code 75.100 (Lubricants, industrial oils and related products)

To find similar documents by ASTM Volume:

05.03 (Petroleum Products and Lubricants (III): D6138 - D6971)

To find similar documents by classification:

75.100 (Lubricants, industrial oils and related products Including mineral oils, fluids for metal working and for temporary protection against corrosion Lubrication systems, see 21.260 Insulating oils, see 29.035.40)

To find similar documents by Federal Supply Class Code:

FSC 9150 (Cutting, Lubricating, and Hydraulic)

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Publication Date

June 15, 2017

Document Type

Test Method

Page Count

4 pages

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