ASTM-D1092:2011 Edition

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D1092-11 Standard Test Method for Measuring Apparent Viscosity of Lubricating Greases

Published By	Publication Date	Number of Pages
ASTM	2011	8

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Category: ASTM

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Description

ASTM D1092-11

Historical Standard: Standard Test Method for Measuring Apparent Viscosity of Lubricating Greases

ASTM D1092

Scope

1.1 This test method covers measurement, in poises, of the apparent viscosity of lubricating greases in the temperature range from −54 to 38°C (−65 to 100°F). Measurements are limited to the range from 25 to 100 000 P at 0.1 s⁻¹ and 1 to 100 P at 15 000 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 10 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 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 EPA’s 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.

Keywords

apparent viscosity; capillary; lubricating grease; shear rate; viscosity: Capillary method; Flow and flow rate–petroleum products; Lubricating grease; Temperature tests–petroleum products; Viscosity–petroleum products; Apparent viscosity; Calibration–petroleum analysis instrumentation

ICS Code

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

DOI: 10.1520/D1092-11

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Summary of Test Method
2	Significance and Use Apparatus Sampling FIG. 1 FIG. 2
3	Calibration and Standardization Procedure Calculation FIG. 3
4	Precision and Bias TABLE 1 FIG. 4
5	Keywords A1. APPARATUS FOR GREASE SYSTEM A1.1 Apparatus A1.2 Power System A1.3 Hydraulic System A1.4 Gages A1.5 Grease Cylinder Assembly A1.6 Capillaries TABLE 2
6	FIG. A1.1
7	X1. CALIBRATION OF CAPILLARIES X1.1 X1.2 X2. ALTERNATIVE PROCEDURES FOR MEASURING APPARENT VISCOSITY AT LOW SHEAR RATES X2.1 Apparatus FIG. A1.2
8	X2.2 Procedure X2.3 Precision and Bias X2.4 Apparatus X2.5 Procedure X2.6 Precision and Bias