ISO-4263-4 › Petroleum and related products - Determination of the ageing behaviour of inhibited oils and fluids - TOST test - Part 4: Procedure for industrial gear oils
ISO-4263-4
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1ST EDITION
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CURRENT
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ISO 4263:2006 specifies a method for the determination of the ageing behaviour of gear oils of categories CKC, CKD, CKS and CKT as defined in ISO 6743-6. The ageing is accelerated by the presence of air and elevated temperatures, and the degradation of the oil is assessed by the change in kinematic viscosity at 100 °C, the insoluble content (precipitation number), and possibly the acid number increase, the sediment content by filtration, the additives content variation and the infra-red oxidation.
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Document Number
ISO 4263-4:2006
Revision Level
1ST EDITION
Status
Current
Publication Date
Feb. 1, 2006
Committee Number
ISO/TC 28