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