ASTM-D6351 Historical Revision Information
Standard Test Method for Determination of Low Temperature Fluidity and Appearance of Hydraulic Fluids

ASTM-D6351 - 2010 EDITION - SUPERSEDED
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Standard Test Method for Determination of Low Temperature Fluidity and Appearance of Hydraulic Fluids
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Scope

1.1 This test method covers the fluidity and appearance of hydraulic fluids after storage at low temperature.

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

1.2.1 ExceptionIn 6.1.1, the material is designated in cSt as this is the common name used for this type of oil.

1.3 WARNINGMercury has been designated by many regulatory agencies as a hazardous material that can cause central nervous system, kidney and liver damage. Mercury, or its vapor, may be hazardous to health and corrosive to materials. Caution should be taken when handling mercury and mercury containing products. See the applicable product Material Safety Data Sheet (MSDS) for details and EPAs websitehttp://www.epa.gov/mercury/faq.htmfor additional information. Users should be aware that selling mercury and/or mercury containing products into your state or country may be prohibited by law.

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 and health practices and determine the applicability of regulatory limitations prior to use. For specific warning statements, see 1.3 and Section 6.

Significance and Use

The temperature at which a lubricant remains fluid and homogeneous after seven days is an index of its ability to withstand prolonged exposure to cold temperature. With vegetable oils and some synthetic esters, it is necessary to do extended cold storage testing. Quick cool, short-term tests, such as Test Methods D97 and D2500, do not adequately predict the tendency to solidify over longer time spans at cold temperatures.

This test method is not intended to indicate cold temperature pumpability performance. A separate assessment of viscometric performance should be made in order to assess cold flow properties, which are important in order to avoid system damage in cold temperature applications. Suitable guidelines for such testing and test temperatures for various viscosity grades can be found in Practice D6080.

No specific temperature of measurement is given in this test method because fluids with different viscosity grades have different cold temperature performance expectations. For guidance on temperature selection relative to an intended low temperature viscosity grade or ISO VG, consult Practice D6080. As an example of using Practice D 6080D6080, a L22 viscosity grade would be evaluated at the lowest temperature for that grade, namely -22.9°C. Alternatively, a fluid can be evaluated at the lowest temperature expected for field service.

Keywords

hydraulic fluid; low temperature appearance; low temperature fluidity; vegetable oil; Appearance of materials; Fluidity; Hydraulic fluids/oils; Low-temperature testing--petroleum products/applications; ICS Number Code 75.120 (Hydraulic fluids)

To find similar documents by ASTM Volume:

05.02 (Petroleum Products and Lubricants (II): D3711 - D6122)

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

To find similar documents by classification:

75.120 (Hydraulic fluids Fluid power systems, see 23.100)

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Document Number

ASTM-D6351-10

Revision Level

2010 EDITION

Status

Superseded

Modification Type

Revision

Publication Date

Aug. 1, 2010

Document Type

Test Method

Page Count

2 pages

Committee Number

D02.N0