Measurement of Chlorine Residual

This video will cover taking a good chlorine sample and methods for analysis. Effective measurement of chlorine residual is essential for protection of public health. The presence of the residual not only provides disinfection, it also serves and an indicator of water quality. Loss of residual can be an indicator of a water quality problem.
Chlorine residual may be measured for compliance or non-compliance purposes. While the analysis will remain the same, how you collect the sample may differ. This video will discuss measurement of chlorine residual using a colorimetry and a handheld spectrophotometer. For more information about chlorine residual and other topics, visit our website at rcap.org.