GB/T 14637-2007 in English

《GB/T 14637-2007工业循环冷却水及水垢中铜、锌的测定　原子吸收光谱法》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。
本标准规定了工业循环冷却水及水垢中铜、锌含量的测定方法---原子吸收光谱法。
本标准适用于工业循环冷却水中铜含量为0.5mg/L~50mg/L、锌含量为0.1mg/L~20mg/L,
水垢中铜含量为0.5mg/g~10mg/g、锌含量为0.1mg/g~10mg/g的测定。本标准也适用于各种工业用水、原水、生活用水及锅炉水水垢中铜、锌含量的测定。
本标准同时也适用于工业循环冷却水用磷锌预膜液中锌含量的测定。

Scope

This standard specifies the determination method of copper and zinc content in industrial circulating cooling water and scale - atomic absorption spectrometry. This standard applies to industrial circulating cooling water with a copper content of 0.5 mg/L to 50 mg/L, a zinc content of 0.1 mg/L to 20 mg/L, and a scale with a copper content of 0.5 mg/g to 10 mg/g, zinc Determination of the content of 0.1 mg/g ~ 10 mg/g. This standard is also applicable to the determination of copper and zinc content in various industrial water, raw water, domestic water and boiler water scale. This standard is also applicable to the determination of zinc content in phosphorus-zinc pre-coating solution for industrial circulating cooling water.