Performance test method for diesel engine soot-removal devices in lubricating oils. Initial filtration efficiency Ingestion-build-109673 ISO 21813 specifies methods for

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Performance test method for diesel engine soot-removal devices in lubricating oils. Initial filtration efficiency Ingestion-build-109673 ISO 21813 specifies methods for1 Scope This Technical Specification specifies a multipass soot filtration test method using batch thermal gravimetric analysis (TGA), continuous online Fourier Transformation Infrared (FTIR), or other approved soot measuring techniques for evaluating the initial filtration efficiency of single stage, multiple stage, centrifugal and other soot removal devices (SRD) for internal combustion engines submitted to a constant flow rate of test liquid. The