ASTM D1092-12(2017)
Standard Test Method for Measuring Apparent Viscosity of Lubricating Greases

Standard No.

ASTM D1092-12(2017)

Release Date

2012

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D1092-18

Latest

ASTM D1092-20

Scope

5.1 Apparent viscosity versus shear rate information can be useful in predicting pressure drops in grease distribution systems under steady-state flow conditions at constant temperature.

1.1 This test method covers measurement, in poises, of the apparent viscosity of lubricating greases in the temperature range from −548201;°C to 388201;°C (−658201;°F to 1008201;°F). Measurements are limited to the range from 258201;P to 1008201;0008201;P at 0.18201;s⁻¹ and 18201;P to 1008201;P at 158201;0008201;s⁻¹.

Note 1: At very low temperatures the shear rate range may be reduced because of the great force required to force grease through the smaller capillaries. Precision has not been established below 108201;s⁻¹.

1.2 This standard uses inch-pound units as well as SI (acceptable metric) units. The values stated first are to be regarded as standard. The values given in parentheses are for information only. The capillary dimensions in SI units in Fig. A1.1 and Fig. A1.2 are standard.

1.3 WARNING—Mercury 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 EPA’s website—http://www.epa.gov/mercury/faq.htm—for additional information. Users should be aware that selling mercury and/or mercury containing products into your state or country may be prohibited by law.

1.3.1 In addition, temperature measuring devices such as liquid-in-glass thermometers, thermocouples, thermistors, or platinum resistance thermometers that provide equivalent or better accuracy and precision, that cover the temperature range for ASTM thermometer 49C, may be used.

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, health and environmental 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.

ASTM D1092-12(2017) Referenced Document

• ASTM D217 Standard Test Methods for Cone Penetration of Lubricating Grease
• ASTM D3244 Standard Practice for Utilization of Test Data to Determine Conformance with Specifications
• ASTM D88 Standard Test Method for Saybolt Viscosity

ASTM D1092-12(2017) history

• 2020 ASTM D1092-20 Standard Test Method for Measuring Apparent Viscosity of Lubricating Greases
• 2019 ASTM D1092-19 Standard Test Method for Measuring Apparent Viscosity of Lubricating Greases
• 2018 ASTM D1092-18 Standard Test Method for Measuring Apparent Viscosity of Lubricating Greases
• 2012 ASTM D1092-12(2017) Standard Test Method for Measuring Apparent Viscosity of Lubricating Greases
• 2012 ASTM D1092-12 Standard Test Method for Measuring Apparent Viscosity of Lubricating Greases
• 2011 ASTM D1092-11 Standard Test Method for Measuring Apparent Viscosity of Lubricating Greases
• 2005 ASTM D1092-05 Standard Test Method for Measuring Apparent Viscosity of Lubricating Greases
• 1999 ASTM D1092-99 Standard Test Method for Measuring Apparent Viscosity of Lubricating Greases