Recently, the validation meeting of the "Beijing-Tianjin-Hebei Local Calibration Standard "Pairing"" led by the Beijing Institute of Metrology and Detection was held in Beijing. The picture shows the site of the certification meeting The meeting was chaired by Deputy Director Liu Yong of Metrology Bureau of Beijing Municipal Bureau of Quality Supervision, from Beijing Metrology Institute, Tianjin Market Construction Management Committee, Tianjin Metrology Institute, Hebei Province Quality Supervision Bureau Metrology Division, Hebei Province Metrology Institute, Beijing The technical staff of the standard drafting group, including Thermal Power Group, Beijing Jingyuan Water Company and Dalian Bokong Company, attended the meeting. Five teachers formed a validation committee, and Jin Zhijun, a teacher of the China Institute of Metrology, was the head of the validation committee. Wang Jing and Yao Min of the Beijing Institute of Metrology and Energy, as chief editors, reported on the situation. The director of the Tianjin Metrology Institute and the director of the Hebei Metrology Institute Bu Zhancheng made additional explanations. After careful review and inquiry by the validation committee, the specification was unanimously affirmed and highly evaluated. The reviewing experts believe that the specification is scientific and reasonable, has strong operability, fills the gap in the field, and has reached the domestic leading level. Heat meters paired with temperature sensor calibration methods. In addition, the experts also proposed amendments to the specifications. The drafting group revised the specifications based on opinions and passed the committee's validation.