覆盖22类关键仪器设备，中国环监总站发布水质类仪器适用性合格名录

Core Viewpoint - The China National Environmental Monitoring Center has released the "Qualified Directory of Applicability Testing for Water Quality Instruments," which includes 1,242 products across 22 categories of water quality monitoring and related instruments, indicating a significant advancement in the technical standards and reliability of water quality monitoring instruments in China [1][2]. Summary by Relevant Sections Overview of Qualified Instruments - The qualified instruments cover key indicators and technical requirements for current water environment monitoring, including pH automatic monitoring instruments, turbidity automatic monitoring instruments, dissolved oxygen automatic monitoring instruments, and various others [3]. Detailed Instrument Categories and Quantities - The following table summarizes the categories and quantities of qualified water quality instruments as of December 31, 2025: | Water Quality Instrument Category | Number of Instruments (units) | | --- | --- | | pH automatic monitoring instrument | 27 | | Turbidity automatic monitoring instrument | 2 | | Dissolved oxygen automatic monitoring instrument | 1 | | Conventional five-parameter automatic monitoring instrument | 90 | | Permanganate index automatic monitoring instrument | 86 | | Total nitrogen automatic monitoring instrument (HJ/T 102-2003 compliant) | 165 | | Total nitrogen automatic monitoring instrument (CNEMC-03-ZJZX-005-2023 compliant) | 22 | | Total phosphorus automatic monitoring instrument (HJ/T 103-2003 compliant) | 169 | | Total phosphorus automatic monitoring instrument (CNEMC-03-ZJZX-006-2023 compliant) | 30 | | Ammonia nitrogen automatic monitoring instrument | 187 | | Chemical oxygen demand automatic monitoring instrument | 175 | | UV absorption automatic monitoring instrument | 15 | | Heavy metal (lead, cadmium, arsenic, hexavalent chromium) automatic monitoring instrument | 27 | | COD photometric rapid determination instrument | 4 | | Ultrasonic open channel flow meter | 9 | | Volatile organic compounds automatic monitoring instrument | 2 | | Outdoor small multi-parameter automatic monitoring system | 25 | | Automatic water sampler | 69 | | Intelligent water sampler | 8 | | Data collection and transmission instrument | 120 | | Pollution source automatic monitoring (control) intelligent data collection and transmission instrument | 7 | | Heavy metal (antimony, thallium) automatic monitoring instrument | 2 [4][5].