This part of GB/T 5822 specifies the method for the determination of petroleum ether insoluble matter in railway diesel engine oil. This section includes method A (volumetric method) and method B (gravimetric method). This part is applicable to the determination of the petroleum ether insoluble content of used and in-use third-generation and fourth-generation diesel engine oils (hereinafter referred to as engine oils).
GB/T 5822.2-2004 history
2004GB/T 5822.2-2004 Test method of petroleum ether insolubles in Lubricating oil for railway locomotive diesel engine
1986GB/T 5822.2-1986 Oil-change criterion of railway diesel locomotive engine oils--Test method for determination of matter insoluble in petroleum ether (Volumetric method)