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See Chinese contents: HJ 353-2019 HJ 353-2019: Technical specification for installation of wastewater on-line monitoring system (CODCr, NH3-N et al.)
This Standard specifies the composition of wastewater on-line monitoring system, construction requirements for wastewater discharge outlets, flow monitoring units, monitoring stations, automatic water quality sampling units and data control units, installation requirements for flow meter, automatic water quality sampler and automatic water quality analyzer, as well as technical requirements for debugging and trial operation of wastewater on-line monitoring system.
