【摘要】：采用便攜式余氯比色計(jì)快速測定飲用水中的游離余氯。對便攜式余氯比色計(jì)進(jìn)行校正,現(xiàn)場檢測余氯的最佳水溫為20℃左右,最佳酸度為pH 6~7,比色計(jì)讀數(shù)時(shí)間應(yīng)控制在20min內(nèi)。水中錳、鉻等金屬離子的干擾可通過添加碘化鉀溶液消除。此方法與國家標(biāo)準(zhǔn)GB 5749-2006中方法相比較,檢測結(jié)果無顯著性差異。
[Abstract]:A portable residual chlorine colorimeter was used for rapid determination of free residual chlorine in drinking water. The portable residual chlorine colorimeter was calibrated. The optimum water temperature and pH value of residual chlorine were about 20 鈩，

本文編號：2199528