GB/T 14640-2017 工业循环冷却水和锅炉用水中钾、钠含量的测定 Determination of potassium and sodium in water for industrial circulating cooling system and boiler

本标准规定了工业循环冷却水和锅炉用水中钾、钠的测定方法。
本标准中原子吸收光谱法适用于钾含量0.1mg/L~50mg/L、钠含量0.1mg/L~500mg/L的测定，电位法适用于钠含量0.01mg/L~100mg/L的测定，火焰发射光谱法适用于钾含量0.1mg/L~10mg/L、钠含量0.1mg/L~10mg/L的测定。
本标准也适用于各种工业用水、原水及生活用水中钾、钠的测定。GB/T 14640-2017 　代替GB/T 14640-2008 工业循环冷却水和锅炉用水中钾 、 　　　　　钠含量的测定 Determination of potassium and sodium in water for industrial 　 　 　 　 　 　 　 circulating cooling system and boiler (ISO 9964-1:1993 , Water quality-Determination of sodium and potassium- 　 　 Part 1: Determination of sodium by atomic absorption spectrometry; ISO 9964-2:1993 ,Water quality-Determination of sodium and potassium- 　 Part 2 : Determination of potassium by atomic absorption spectrometry; ISO 9964-3: 1993 ,Water quality-Determin