GB/T 335-2002 specifies non-self-indicated scales. It clearly defines the term concept of non-self-indicated scales and clarifies their scope of application. In terms of technical requirements, key parameters such as accuracy class, maximum weighing capacity, and minimum weighing capacity of the scale are limited, and the performance standards of the scale body structure, load-bearing devices and other components are stipulated. The standard details the test methods of non-self-indicated scales, including static weighing test, dynamic weighing test and other processes. At the same time, the inspection rules are clarified, covering factory inspection, type inspection, etc. The standard provides the basis for the production, testing and use of non-self-indicated scales, and guarantees the accuracy of such scales in trade settlement, industrial production and other fields. Measurement.