Full Description

1.1This test method automates the determination of low temperature, low-shear-rate viscosity of driveline and hydraulic fluids, such as automatic transmission fluids, gear oils, hydraulic fluids, and other lubricants. It utilizes a thermoelectrically temperature-controlled sample chamber along with a programmable rotational viscometer. This test method covers a viscosity range of 300mPas to 900000mPas measured at temperatures from -40C to -10C.

1.2The precision data were determined at -40C and -26C for a viscosity range of 6380mPas to 255840mPas.

1.3The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard except those noted below.

1.3.1Exception-The test method uses the SI unit, milliPascal-second (mPas), as the unit of viscosity. (1cP = 1mPas).

1.4This 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.

1.5This 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.