Pass - fail - tool, in order to the degree of contamination by means of particles to be tested in a fluid

摘要

The method of testing the degree of contamination by particles in a fluid, comprising:Directing a light beam into a the fluid containing;Measuring the turbidity of the fluid sample by determining the amount of light, which is scattered from the fluid sample from the sample chamber outlet;Generating a signal having a magnitude of the amount of scattered, the determined light; andComparing the generated signal with a further indicator of a degree of contamination of the fluid.