Positive Material Identification (PMI) Tools: Sorting Materials with Resistivity Testing

Which materials are challenging for PMI tools to sort using resistivity testing?

A) Low chromes B) High chromes C) 300 series stainless steels D) 400 series stainless steels E) Low chromes and 300 series stainless steels F) High chromes and 400 series stainless steels

Answer:

PMI tools using resistivity testing may struggle to differentiate between low-chrome materials and 300 series stainless steels due to their similar resistivity levels.

Positive Material Identification (PMI) tools that utilize resistivity testing are essential in various industries for accurately identifying the composition of materials. However, when it comes to sorting materials, these tools may face challenges, especially when dealing with low-chrome materials and 300 series stainless steels.

Low-chrome materials and 300 series stainless steels share similar resistivity levels, making it difficult for PMI tools to distinguish between them accurately. On the other hand, high-chrome materials and 400 series stainless steels typically have distinct resistivity properties, which makes them easier to identify using resistivity testing.

Although PMI tools provide valuable data for material analysis, it is important to consider the limitations they may have when sorting certain types of materials based on resistivity levels.