Norm

ISO 2137:2007 en

Aardolieproducten en smeer - Bepaling van het indringingsgetal met een conus van smeervet en vaseline

98,05

Over deze norm

Status Definitief
Aantal pagina's 22
Commissie Vloeibare en gasvormige brandstoffen, smeermiddelen en verwante producten
Gepubliceerd op 01-12-2007
Taal Engels
This International Standard specifies several methods for the empirical estimation of the consistency of lubricating greases and petrolatum by measuring the penetration of a standardized cone. The National Lubricating Grease Institute (NLGI) classifies greases according to their consistency, as measured by the 60 strokes worked penetration. The NLGI classification includes nine consistency numbers or grades, each grade corresponding to a given range of worked penetration. The NLGI classification is given in ISO 6743-99. Clause 7 of this International Standard specifies four procedures for determining the consistency of lubricating greases by measuring the penetration of a full-scale cone. These procedures cover the measurement of unworked, worked, prolonged worked, and block penetrations. Penetrations up to 500 units can be measured. Clause 8 of this International Standard specifies methods for determining the consistency of lubricating greases when only small samples are available, by the use of cones a half-scale or quarter-scale of that used in Clause 7. The methods are applicable to greases having penetrations of 175 units to 385 units with the fullscale cone and are intended for use only if the size of the test sample prevents the use of cones described in Clause 7. They are not intended to replace the full-scale penetration as described in Clause 7, although a conversion to full-scale penetration is given in 10.2. See 8.1 for the limitations on the use of one-quarter-scale cones due to the poor precision.

Details

ICS-code 75.100
75.140
Nederlandse titel Aardolieproducten en smeer - Bepaling van het indringingsgetal met een conus van smeervet en vaseline
Engelse titel Petroleum products and lubricants - Determination of cone penetration of lubricating greases and petrolatum
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