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Standard Test Methods for Cone Penetration of Lubricating Grease
Automaticky preložený názov:
Štandardné Skúšobné metódy pre penetrácie kužeľom mazacieho tuku
NORMA vydaná dňa 1.5.2010
Označenie normy: ASTM D217-10
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.5.2010
Kód tovaru: NS-19501
Počet strán: 14
Približná hmotnosť: 42 g (0.09 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
consistency, grease, lubricating grease, penetration, penetrometer, worked penetration, Cone penetration, Consistency--petroleum products, Coulometry, Lubricating grease, National Lubricating Grease Institute (NLGI), Penetration--petroleum productsapplications, ICS Number Code 75.100 (Lubricants, industrial oils and related products)
Significance and Use | ||||
These cone penetration tests not only evaluate the consistency of lubricating greases over the full range of NLGI numbers from 000 to 6, but also evaluate the consistency of stiff greases having penetration numbers less than 85. In contrast, Test Method D937 is aimed at petrolatums and Test Method D1403 uses less precise one-quarter and one-half scale equipment intended for use when the sample quantity is limited. Cone penetration test results provide one measure of the consistency of a grease. Worked penetration results are required to determine to which NLGI consistency grade a grease belongs. Undisturbed penetration results provide a means of evaluating the effect of storage conditions on grease consistency. Although no correlation has been developed between cone penetration results and field service, the cone penetrations obtained by the four procedures are widely used for specification purposes, such as in users' material specifications and suppliers' manufacturing specifications. |
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1. Scope | ||||
1.1 These test methods cover four procedures for measuring the consistency of lubricating greases by the penetration of a cone of specified dimensions, mass, and finish. The penetration is measured in tenths of a millimetre. Note 1—The National Lubricating Grease Institute (NLGI) classified greases according to their consistency as measured by the worked penetration. The classification system is as follows: |
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2. Referenced Documents | ||||
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