标准编号：ISO 4263-4:2006
中文名称：石油和相关产品-封闭油和液体变质测定-TOST试验-第4部分：工业齿轮油程序
英文名称：Petroleum and related products — Determination of the ageing behaviour of inhibited oils and fluids — TOST test — Part 4: Procedure for industrial gear oils
发布日期：2006-02
标准范围
This part of ISO 4263 specifies a method for the determination of the ageing behaviour of gear oils ofcategories CKC, CKD, CKS and CKT as defined in ISO 6743-6[5]. The ageing is accelerated by the presenceof air and elevated temperatures, and the degradation of the oil is assessed by the change in kinematicviscosity at 100 °C, the insoluble content (precipitation number), and possibly the acid number increase, thesediment content by filtration, the additives content variation and the infra-red oxidation.
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