SR EN ISO 4263-4:2006

Petroleum and related products - Determination of the ageing behaviour of inhibited oils and fluids - TOST test - Part 4: Procedure for industrial gear oils (ISO 4263-4:2006)

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.

30.96

Status : Valid
Approval date : 8/9/2006
Publish date : 8/11/2006
Number of pages : 22
ICS : 75.100 Lubricants, industrial oils and related products
Technical Committee : 320 - Gaseous and liquid fuels, lubricants and related products of petroleum, synthetic and biological origin