I just has a bar of material tested using our XRF analyzer and it failed 'secondary' testing. To be on the safe side, I sent a part of the material to a NADCAP material testing lab and the material failed a spectrographic test. Both secondary tests showed the Zinc about 30% over specification allowances while the material certification specified the zinc to the in low section (per specification zinc is at .07% with 0-.3% being the allowable zinc--secondary testing put zinc at .039 and .041).
I wonder if this is going to become common or if this just happened and I am paying more attention. I am really hoping it is just a fluke, we will see what the CA says.