To keep the quality testing and spot checking fairly,justly and openly were proposed on the current situation,and the authoritativeness should be established,the public trust should be strengthened and the full play of the supervision function and important function in quality testing spot checking should be given at the same time.

However, percent sampling has been mainly used for sampling inspection of geological data till now.

The characteristic of sample survey plan and its OC curve is analyzed by mathematical statistics.

Sampling and testing (ST) of medical products is an important means of drug quality inspection nationwide.