BS EN 901:2007 pdf free.Chemicals used fortreatment of waterintended for humanconsumption—Sodium hypochlorite. BS EN 901 This European Standard is applicable to sodium hypochlorite used for treatment of water intended for humanconsumption. It describes the characteristics of sodium...
BS EN 900:2007 pdf free
BS EN 900:2007 pdf free.Chemicals used fortreatment of waterintended for humanconsumption — Calcium hypochlorite. BS EN 900 This European Standard is applicable to calcium hypochlorite used for the treatment of water intended for humanconsumption. It describes the...