Quality Control

1. Quality refers to the sum of characteristics and characteristics of products or services that meet the specified or potential needs. It includes both tangible and intangible products; It includes both the internal and external characteristics of the product. That is to say, it includes all the contents of product applicability and conformity.

2. Industrial product quality Industrial product quality refers to the sum of the characteristics and characteristics of industrial products that are suitable for a certain purpose and meet people's needs, that is, the applicability of products. It includes the internal characteristics of the product, such as the structure, physical properties, chemical composition, reliability, accuracy, purity, etc. of the product; It also includes the external characteristics of the product, such as shape, appearance, color, sound, smell, packaging, etc; There are also economic characteristics such as cost, price, use and maintenance costs, as well as other characteristics such as delivery time, pollution and public hazards. The different characteristics of industrial products distinguish the different uses of various products and meet the different needs of people. The different characteristics of various products can be summarized as: applicability, reliability, safety, service life, economy, etc. Author: popular science consulting