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1.1 ,This test method covers the determination of particle concentration, particle size distribution, particle shape, and soot content for new and in-service oils used for lubrication and hydraulic systems by a direct imaging integrated tester.
1.1.1 ,The test method is applicable to petroleum and synthetic based fluids. Samples from 2 to 150 mm2/s at 40°,C may be processed directly. Samples of greater viscosity may be processed after solvent dilution.