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  • ASTM
    D4950-22 Standard Classification and Specification for Automotive Service Greases
    Edition: 2022
    $86.11
    Unlimited Users per year

Description of ASTM-D4950 2022

ASTM D4950-22

Active Standard: Standard Classification and Specification for Automotive Service Greases




ASTM D4950

Scope

1.1 This specification covers lubricating greases suitable for the periodic relubrication of chassis systems and wheel bearings of passenger cars, trucks, and other vehicles.

1.2 This specification defines the requirements used to describe the properties and performance characteristics of chassis greases and wheel bearing greases for service-fill applications.

1.3 The test requirements (acceptance limits) given in this specification are, as the case may be, minimum or maximum acceptable values for valid duplicate test results. Apply no additional corrections for test precision, such as described in Practice D3244, inasmuch as the precision of the test methods was taken into account in the determination of the requirements.

1.4 The values stated in SI units are to be regarded as standard.

1.4.1 Exceptions—Test Method D2596 reports test results in kgf units, and Test Method D4289 reports rubber hardness in Durometer Shore A units.

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.


Keywords

automotive grease categories; automotive service grease; chassis grease; multipurpose automotive grease; NLGI chassis and wheel bearing service classification; NLGI grease classification; wheel bearing grease;


ICS Code

ICS Number Code 75.100 (Lubricants, industrial oils and related products)


DOI: 10.1520/D4950-22

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