I'm sure this has probably been discussed before in the forum but can someone help me figuring out if there is a standard usually followed for threshold frequency of metal detectors?
We are a confectionary company and test pieces we use are :
1.2 MM FE
1.5 MM NONFE
2.0 MM SS
We put the pieces as close to the centre as possible and if possible within the product.
Metal detection test is carried out every hour and rejected material goes into a separate box.
As per BRC, we are ok but correct me if I am wrong.
For validation purposes, do we need to specify a particular threshold value for all products or each product?
Would just rejection be enough whatever the threshold value is at?