This language was used in Q7A Section 7.3 specifically to allow you to justify why you would not be testing a certain material. It could be that it is a material that is not necessarily highly toxic or highly hazardous, but it is a very specialized material. The supplier has very specialized testing ability and testing procedures, and you do not have that particular capability. What Q7A says is that for special situations, you can justify taking it on the vendor’s Certificate of Analysis. Obviously, you would have developed some sort of confidence in your vendor to do that testing.
