International Organization for Standardization (ISO)
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ISO 13737:2004
Scope
This International Standard specifies a method for determining the cone penetration of lubricating greases at low temperatures.
NOTE 1 Precision has only been determined in the temperature range -40 ℃ to -20 ℃. This International Standard may be used at other temperatures, e.g. -20 ℃ to +20 ℃, however precision has not been determined under these conditions.
NOTE 2 The cone penetration is expressed in units of 0,1 mm.
ISO 13737:2004 history
2004ISO 13737:2004 Petroleum products and lubricants - Determination of low-temperature cone penetration of lubricating greases