According to the existing national standards at all levels, the express guarantee of enterprises, the requirements of technical contracts on product quality, physical sampling and relevant laws and regulations stipulated by quality supervision departments, it is a normative document with legal effect and an important basis for law enforcement by technical supervision departments, courts and other units. The quality of inspection report comprehensively reflects the work quality of quality inspection institutions and is an important symbol to measure the technical level and management level of quality inspection institutions. It is directly related to the interests of consumers, distributors, producers and the country, and also related to the science, justice and social reputation of quality inspection institutions.
Sampling inspection, also known as sampling inspection, is a statistical method and theory to randomly select a small number of products (samples) from a batch of products for inspection to judge whether the batch of products is qualified or not. The difference between it and comprehensive inspection is that the latter needs to inspect the whole batch of products one by one and pick out the unqualified products, while sampling inspection infers the quality of the whole batch of products according to the inspection results of the products in the sample.