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Currently, I am sourcing for a laboratory hydraulic contamination test eqpt whereby one uses for aviation hydraulic fluid contamination check ie to perform the particles count on the hydraulic fluid samples drawn from the aircraft and its ground support eqpt.

1)Can a conventional sensor of a laboraroty bench optical particle counter able to determine the water and chlorine contaminants and tabulate out the finding in ppm terms or a seperate test kit is needed to perform the water and chlorine test in hydraulic fluid?
ie to say can a conventional batch particle counter perform all three tests namely the particles, water and chlorine contaminants.

2)What are the pros and cons of having a portable particle counter as compared to a laboratory bench particle counter?

Would appreciate the advice from the members of the forum here on the recommedation of the concern contamination test kit and also some queries that I have.
Original Post
quote:
Originally posted by Keeve:
Currently, I am sourcing for a laboratory hydraulic contamination test eqpt whereby one uses for aviation hydraulic fluid contamination check ie to perform the particles count on the hydraulic fluid samples drawn from the aircraft and its ground support eqpt.

1)Can a conventional sensor of a laboraroty bench optical particle counter able to determine the water and chlorine contaminants and tabulate out the finding in ppm terms or a seperate test kit is needed to perform the water and chlorine test in hydraulic fluid?
ie to say can a conventional batch particle counter perform all three tests namely the particles, water and chlorine contaminants.


Comment: No. An Optical Particle Counter can only give you an cleanliness class and/or particle counts after several reporting standards like NAS1638, NAVAIR, ISO4406, AS4059D. For water measurement you can get % Saturation instruments (not sure if you get them compatible with type IV hydraulic fluids). Chlorine content in ppm can only be measured by a laboratory as far as I know.

quote:

2)What are the pros and cons of having a portable particle counter as compared to a laboratory bench particle counter?


Comment:
Pros: You get an indication on site how clean the fluid is without waiting days for the results.

Cons: Particle counters are expencive and need regulary calibration to operate correctly. Its accuracy is not similar to laboratory tests (APC or Microscopy) due to several factors (operator, air bubles, water droplets, calibration).


I would check out your local Millipore supplier for portable on site pach test kits for aviation fluids. Might be a good alternative to OPC.
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