HG/T 3516-2011 in English

本标准规定了采用分子吸收分光光度法测定工业循环冷却水中亚硝酸盐的方法。
本标准适用于工业循环冷却水中亚硝酸盐含量在0.062mg/L～0.25mg/L的测定，也适用于饮用水、生活用水和废水中的亚硝酸盐的测定。

Scope

Important note: The strong acid used in this standard is corrosive, and the developer is a dangerous product, so care should be taken when using it. If splashed on body, rinse with plenty of water and avoid inhalation or skin contact. This standard specifies a method for the determination of nitrite in industrial circulating cooling water using molecular absorption spectrophotometry. This standard is applicable to the determination of nitrite content in industrial circulating cooling water between 0.062mg/L and 0.25mg/L. It is also applicable to the determination of nitrite in drinking water, domestic water and wastewater.