本标准描述了固体（粒状、片状或粉末状）或水溶液形式的亚氯酸钠，用于制造二氧化氯，用于处理饮用水、废水和再生水。亚氯酸钠必须按照美国环境保护局（USEPA）管理的《联邦杀虫剂、杀真菌剂和灭鼠剂法案》（FIFRA）进行包装、标记和注册。州规定也可能适用。本标准可在购买和接收亚氯酸钠的文件中引用，并可作为测试亚氯酸钠样品物理和化学性质的指南。本标准的规定仅适用于饮用水、废水和再生水处理中使用的亚氯酸钠。

This standard describes sodium chlorite, in either solid (granular, flake, or powdered) or aqueous-solution form, for use in making chlorine dioxide for use in the treatment of potable water, wastewater, and reclaimed water. Sodium chlorite must be packaged, labeled, and registered according to the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) as administered by the US Environmental Protection Agency (USEPA). State regulations may also apply.This standard can be referenced in documents for purchasing and receiving sodium chlorite and can be used as a guide for testing the physical and chemical properties of sodium chlorite samples. The stipulations of this standard apply when this document has been referenced and then only to sodium chlorite used in the treatment of potable water, wastewater, and reclaimed water.