PMI Testing
PMI Testing
(OP)
My company has a need for occasional PMI verification of the materials of construction of large engineered fabrications - do any companies offer PMI testing as an on-site service?
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RE: PMI Testing
www.ndt.org
Check with the following suppliers of XRF euipment
www.niton.com
My link to Texas Necular is dead
RE: PMI Testing
Before you start, however, make sure you understand the capabilities and the limitations of these techniques especially if you are interested in detecting elements with a low atomic number.
Good Luck!!
RE: PMI Testing
RE: PMI Testing
I work with PMI testing regularly. It depends on which elements are important for your application. X-ray systems for instance will not see C, but require very little preparation.
Modern optical emission spectrometers can easily pick up C, together with P and S if they are important.
Both techniques pick up a range of other elements. For specific detail e-mail me direct.
Cheers
Andy
RE: PMI Testing
Quadsift
RE: PMI Testing
Selection of a company to perform this type of inspection is not so simple however. Most comapnies are using plain NDE inspectors who have little knowledge of chemistry or metallurgy. For instance I came across a company whose PMI operators couldn't tell me the difference between ss304 & ss321. Select a company with engineering or lab capabilities as well since then you can be assured that their procedures should be docummented and lab proven.