Method of optical particle counting for water mixed lubricant

Details Method of optical particle counting for water mixed lubricant Method of optical particle counting for water mixed lubricant

1998-02-27

2000-05-16

Kim, Robert H.

Optics: measuring and testing

For size of particles

356330, 356335, 356337, G01N 1502

Patent

active

06064480&

ABSTRACT:
Solid particles combined with a water contaminated oil sample are counted by an optical particle counter. The contaminated oil sample is mixed at a substantially 1:1 ratio with a water masking solvent comprising about one part isopropanol and about three parts toluene. The oil and solvent mixture is passed through a transparent viewing volume between a light source and a light detector for detection and counting of oil suspended solid particles.

REFERENCES:
patent: 3892485 (1975-07-01), Merritt et al.
patent: 4003661 (1977-01-01), Yamano
patent: 4790650 (1988-12-01), Keady
patent: 4857829 (1989-08-01), Sagae et al.

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