For Tablet compression machine we use metal detector, for detection of any metal particles in product. For this we challange the metal detector by using some standard pieces of ferrous, Non-ferrous and Stainless steel (FE.NFE & SS), acceptance criteria for FE- 0.15MM, NFE-0.20MM and SS-0.3MM.
My question is - On which basis these criteria was fixed?? and if metal particles occurs in the product which is less than above mention size then it is accetable??