GB/T 13689-2007 in English

《GB/T 13689-2007工业循环冷却水和锅炉用水中铜的测定》由TC63（全国化学标准化技术委员会）归口，TC63SC5（全国化学标准化技术委员会水处理剂分会）执行，主管部门为中国石油和化学工业联合会。
本标准规定了天然水、工业循环冷却水和锅炉用水中铜含量的测定方法。本标准中锌试剂法适用于锅炉给水、凝结水、蒸汽、水内冷发电机冷却水和炉水等水样中铜含量2.5μg/L～50μg/L的测定；二乙基二硫代氨基甲酸钠分光光度法适用于工业循环冷却水、各种工业用水及生活用水中铜含量0.01mg/L～2.00mg/L的测定；二乙基二硫代氨基甲酸钠直接光度法适用于不含悬浮物的工业循环冷却水中铜含量0.05mg/L～6.00mg/L的测定。

Scope

This standard specifies the determination method of copper content in natural water, industrial circulating cooling water and boiler water. The zinc reagent method in this standard is applicable to the determination of the copper content of 2.5 μg/L to 50 μg/L in water samples such as boiler feed water, condensed water, steam, water internal cooling generator cooling water and boiler water; diethyldithioamino Sodium formate spectrophotometry is suitable for the determination of copper content of 0.01 mg/L to 2.00 mg/L in industrial circulating cooling water, various industrial water and domestic water; direct photometry of sodium diethyldithiocarbamate is suitable for the determination of copper content without suspended solids Determination of copper content 0.05 mg/L to 6.00 mg/L in industrial circulating cooling water.