Positive material identification (PMI) or confusion testing can be performed using XRF (X-ray fluorescence analyzer) or a mobile spectral analyzer. The X-ray fluorescence analyzer (XRF) causes absolutely no damage to the test object.
Mobile spectral analysis, on the other hand, detects certain elements that are not detected by XRF, such as carbon.
PMI is therefore an important part of non-destructive testing and serves to ensure that materials meet quality requirements.
The confusion test increases the safety of people and equipment. It contributes significantly to the optimization of consistent manufacturing quality and thus to reduced product liability risks.
If the verification of delivered materials is already carried out during the incoming goods inspection, subsequent problems in the manufacturing process and during the acceptance of manufactured products can be prevented.
Internationally, PMI confusion testing is often used as an integral part of quality assurance and inspection plans.
Today, PMI confusion testing is increasingly being practiced as an additional control measure in the presence of the customer or their representative – true to the motto:
“Those who know nothing must believe everything.”
(Marie von Ebner-Eschenbach 1830-1916)
RFA-Equipment
MICS Engineering and Inspection GmbH uses only new and approved X-ray fluorescence or spectral analysis equipment for PMI confusion checks.
With our XRF, type X-MET7500, we verify:
- Stainless steels
- Aluminum alloys
- Nickel and cobalt alloys
- Copper alloys
- Tool steel
- Titanium alloys with determination of elements from Mg to U.
- Carbon (spectral analysis, not XRF)
The material databases required for this are implemented in the instrument for the DIN, AISI, and JIS standards.
Our testing personnel are trained in the use of the equipment and in radiation protection in accordance with the X-ray Ordinance (RöV). Each tester is appointed as a radiation protection officer and is officially approved.