The Knapp-Test is performed using a test set with 80 injection vials containing particles and 170 non inspected vials of the same product. The statistical rejection probability of each vial is determined first by the manual inspection (4x magnifying lens), whereas 5 inspectors have to inspect each test vial 10 times, and then by the new automatic inspection machine, whereas the machine has to inspect each vial 10 times. The efficiency is calculated with defined formulas.
I saw there was a discussion about Knap Test few months ago and as I serached I could not figure that out. Its a follow-up of same discussion.