Testing for ferromagnetic contamination

[jct22001]

I was looking for some info on possible methods to test for ferromagnetic contamination. My compnay is currently making components for a large MRI machine. The parts we are making are aluminum and require there to be no ferromagnetic contamination. We developed ways to try and prevent contamination but not a way to test for it. Any sugggestions would be helpful and very much appreciated.

 

[HDS]

Would something like this MA-1040 Magnetic Analyzer work?

http://www.particulatesystems.com/Products/MA-1040-Magnetic-Analyzer.aspx

If it is too small a larger unit could be built using the same technique.