Joint release of 7 collaborative metrology technical specifications in the Beijing-Tianjin-Hebei area, totaling 43 items.

On November 5, according to the Beijing Municipal Administration for Market Regulation, the market supervision departments of Beijing, Tianjin, and Hebei jointly released 7 co-built measurement technical standards, covering key areas such as air pollution prevention, water quality monitoring, and civil measurement. This is the ninth batch of regional technical documents jointly published by the three regions since they initiated the co-construction mechanism for measurement standards in 2017. Up to now, the three regions have jointly published a total of 43 measurement technical standards, successfully forming a "Beijing-Tianjin-Hebei model" of coordinated measurement techniques, providing unified measurement technical support for regional ecological environment management, civil services guarantee, and other areas.