GB/T 18920-2020: Translated English of Chinese Standard. (GBT 18920-2020, GB/T18920-2020, GBT18920-2020): The reuse of urban recycling water - Water quality standard for urban miscellaneous use
https://www.chinesestandard.net, 2020 M10 16 - 11 páginas
This Standard specifies the terms and definitions, water quality indicators, sampling and monitoring, safe use of water for urban miscellaneous use in the reuse of urban recycling water. This Standard applies to reclaimed water for miscellaneous use, such as toilet flushing, vehicle washing, urban landscaping, street sweeping, fire protection, construction site and concrete production.
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Terms and definitions
Water quality indicators
Sampling and monitoring
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1.0 factory exit according to Table Ammonia Analysis method applies basic control items Biochemical oxygen demand China Chroma chromatography Clause colorimetry concrete production construction day Once Determination of dissolved Dilution and seeding dissolved oxygen drinking water edition Electrochemical probe method Escherichia coli fire protection implemented according Iodometric method Iron items and limits meet the requirements method Electrochemical probe method GB/T method-Formazin methods for drinking MODIFY municipal nitrate volumetric method Nonec Once a day Once a week parameters GB/T Phenanthroline pipeline network preservation provisions of GB/T quality of water reclaimed water plant replaced reuse of urban road Safe Sampling and testing selective control items spectrophotometry Standard examination methods street sweeping Sulfate terms and definitions testing frequency toilet flushing Total chlorine Total dissolved solids Turbidity urban landscaping urban miscellaneous urban recycling water vehicle washing wastewater water for urban water pipelines water quality indicators water source