On July 20, the Ministry of Industry and Information Technology announced 117 industry measurement technical specifications, such as the Calibration Specification for Laser Methane Telemeter. According to the overall arrangement of the Ministry of Industry and Information Technology for the formulation and revision of measurement technical specifications, 117 industry measurement technical specifications (Annex 1) such as the Calibration Specification for Laser Methane Telemeter, which have been examined and submitted for approval, are now publicized, and the deadline is August 20, 2023.
Among them , JJF (building materials) 201-2023 is the field calibration specification of rotor scale for cement industry; JJF (building materials) 207-2023 is the calibration specification of cement mortar strength rapid curing box; The calibration specifications of mortar setting time tester numbered JJF (building materials) 208-2023 have been listed in 117 industry measurement technical specifications for approval.
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