National standard of weighbridge accuracy

Legal analysis: the weighbridge belongs to the scale with medium accuracy grade, marked as III, and there are also three scales. The scale accuracy is defined as: accuracy grade III, verification score E, verification score N, maximum weight Maix and minimum weight min. In other words, the accuracy standard of the weighbridge is composed of various measurement indexes, and the calibration score of the three-level scale must be within 2000- 10000.

Legal basis: The calibration accuracy of international metrology organization is determined by the calibration division value (E). China's "General Verification Regulation of Non-automatic Weighing Instruments" (JJG555- 1996) was formulated with reference to the recommendations of international metrology organizations, but there are only the third-level regulations at present. The weighbridge is a three-level scale. For the third scale, the maximum permissible error of 0~500e is 0.5e, the maximum permissible error of 500e~2000e is 1e, the maximum permissible error of 2000e~ 10000e is 1.5e, and for the third scale, e = d.