×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Fluid Cleanliness measuring

Fluid Cleanliness measuring

Fluid Cleanliness measuring

(OP)
The company I work for utilises the NAS 1638 class 6  standard of verifying the fluid cleanliness.
While there are many machines out there which will measure partical contaminant analysis within the fluid, each manufacturer of the machines recommends that a "Patch Test" is taken and campared to a master slide.

In order to reduce the ambiguity of interpretaion within the comparison of two slides, I was wondering if there is a system available to count the contaminant particles on a sampled patch test.

Have any of you guys came across such a device?

Possibly if not, we would incorporate a camera device on the magnifying glass to show in clearer method on a monitor.

If anybody can advise any companies which provide these devices as well it would be appreciated

Regards

Kramnaganalf

RE: Fluid Cleanliness measuring

Here is one of several companies that supply the instruments and or services for getting any information you will ever need for particle characterization.

Look under contacts for a office near you.

http://www.malvern.co.uk/home/index.htm

RE: Fluid Cleanliness measuring

(OP)
Thanks Unclesyd.

I am aware of Malvern products, along with HIAC etc.
However these are partical counting within the fluid.

We can only use these machines as guidance and need to pull our samples through a vacuum in a "Patch Test" cleanliness analysis.
This leave all the contaminants on a filter paper which is analysed through a microscope and compared to a master slide to determine the cleanliness

We aim to improve our system by not simply comparing slides which can lead to individual ambiguity and interpretation, to a system which can count the particles and sizes on the paper filter to provide an accurate NAS Class code.

If I cannot find such a device, I will be looking to project the particals onto a monito for easier manual counting

Thanks again

Kramnaganalf

RE: Fluid Cleanliness measuring

I haven't checked that close but doesn't Malvern have specific particle characterization equipment?

I know we have several large atlases of particles we used for identification and characterization of extracted particles.  This changed when we started outsourcing some of the work and the reports had the word Malvern in the header. I wasn't that close to the work except when the analysis was for me so I don't know whether Malveen (US) ran the test or their equipment was used.      

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources