Awwa C670-20 Online Chlorine Analyzer Operation and Maintenance

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The purpose of this standard is to provide the minimum requirements for online chlorine analyzer O&M, sampling requirements, accuracy and precision testing requirements, range requirements, and methods of calibration and troubleshooting. This standard can be referenced in documents for purchasing online chlorine analyzers, can be used as a guide for verifying the accuracy and precision of online chlorine analyzers, or can assist utilities in establishing online chlorine analyzer O&M procedures. The user should ensure the environmental conditions of the application match the manufacturer-specified conditions and requirements for the analyzer. The stipulations of this standard apply when this document has been referenced, and then only to online chlorine analyzers used in the treatment and monitoring of potable water, reclaimed water, or wastewater.