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ASTM D665-24

Current Revision

Standard Test Method for Rust-Preventing Characteristics of Inhibited Mineral Oil in the Presence of Water

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1.1 This test method covers the evaluation of the ability of inhibited mineral oils, particularly steam-turbine oils, to aid in preventing the rusting of ferrous parts should water become mixed with the oil. This test method is also used for testing other oils, such as hydraulic oils and circulating oils. Provision is made in the procedure for testing heavier-than-water fluids.

Note 1: For synthetic fluids, such as phosphate ester types, the plastic holder and beaker cover should be made of chemically resistant material suitable for the type of fluid tested.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 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. For specific warning statements, see 7.4 – 7.6.

1.4 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.


5.1 In many instances, such as in the gears of a steam turbine, water can become mixed with the lubricant, and rusting of ferrous parts can occur. This test indicates how well inhibited mineral oils aid in preventing this type of rusting. This test method is also used for testing hydraulic and circulating oils, including heavier-than-water fluids. It is used for specification of new oils and monitoring of in-service oils.

Note 3: This test method was used as a basis for Test Method D3603. Test Method D3603 is used to test the oil on separate horizontal and vertical test rod surfaces, and can provide a more discriminating evaluation.

SDO ASTM: ASTM International
Document Number D665
Publication Date Dec. 1, 2024
Language en - English
Page Count 10
Revision Level 24
Supercedes
Committee D02.C0.02
Publish Date Document Id Type View
Dec. 1, 2024 D0665-24 Revision
Dec. 1, 2023 D0665-23 Revision
Dec. 1, 2019 D0665-19 Revision
Oct. 1, 2014 D0665-14E01 Revision
Oct. 1, 2014 D0665-14 Revision
Nov. 1, 2012 D0665-12 Revision
May 1, 2006 D0665-06 Revision
Nov. 1, 2003 D0665-03 Revision
Nov. 10, 2002 D0665-02 Revision
Dec. 10, 1999 D0665-99 Revision
Not Available D0665-98E01 Revision