T/UNP 798-2025 Management specification for quality control of metrological verification and calibration data

Scope

This standard specifies the general requirements for metrological verification and calibration data, errors and abnormal values, quality inspection, quality control, and deviation handling, and is applicable to the data quality control of statutory metrological verification institutions. The general requirements cover personnel deployment and records, environmental condition monitoring, the configuration of metrological standards and equipment, and traceability. The errors are divided into systematic errors, random errors, and abnormal values, with their causes and characteristics clearly defined. Quality inspection includes equipment verification and calibration plans, metrological reference management, and the selection of verification and calibration methods. Quality control involves data collection review standards, key node control, and quality management and assurance measures. It also stipulates the circumstances requiring increased frequency of quality control and the handling requirements when the results are unsatisfactory.

Development Information

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