Fuel and Lubricant Testing


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ASTM D1403 - Quarter & Half Cone Penetration of Grease


We perform grease quality testing by ASTM D1403 to measure the consistency of lubricating grease using a smaller cone penetration apparatus. ASTM D1403 is used when the sample is too small to use ASTM D217. This test uses a ¼-scale cone or a 1/2-scale cone to measure the penetration of worked and unworked grease samples. The reduced-scale penetration values are converted to full-scale penetration values. These results can be used to establish the NLGI consistency of the grease or to evaluate the effect of storage conditions on grease consistency.

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ASTM D1403 corresponds to IP 310.

For additional information on this test method or to purchase a copy of the method, please click HERE to open a new window and visit the ASTM website.