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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

Jan 27, 2006

General information

90.93     Mar 5, 2026

ISO

ISO/TC 28

International Standard

75.100  

English   French   Russian  

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Published

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Scope

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.

Life cycle

NOW

PUBLISHED
ISO 4263-4:2006
90.93 Standard confirmed
Mar 5, 2026

National adoptions

SRPS EN ISO 4263-4:2011  
ISS

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)

60.60   Standard published

B028-1 more