According to relevant national standards, qualified tap water should contain a certain amount of residual chlorine, but excessive residual chlorine content can increase the odor of water and also bring some harmful by-products (such as chloroform). To eliminate the tedious operation of preparing reagents and testing processes for users, and improve detection efficiency, based on the GB 5750.11-2006 standard, this product has been launchedResidual chlorine/total chlorine reagent (low range water quality detection reagent).

Residual chlorine/total chlorine reagent (low range water quality detection reagent)， N. N-diethyl-phenylenediamine (DPD) method (GB 5750.11-2006). DPD reagent reacts rapidly with free residual chlorine in water to produce a red color, and the color depth is proportional to the content of free residual chlorine in water.

measuring range