本标准描述了用于饮用水、废水和再生水处理的无水和液体磷酸一钠。所述产品是一种正磷酸盐，用于配方和混合物中，以抑制输水系统的腐蚀。本标准所述产品也称为磷酸钠、一元、无水和液体。本标准可在采购和接收无水和液体磷酸一钠的文件中引用，并可作为测试磷酸一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和再生水处理中使用的无水和液态磷酸一钠。

This standard describes monosodium phosphate, anhydrous and liquid, for use in the treatment of potable water, wastewater, and reclaimed water. The product described is an orthophosphate used as formulated and in blends to inhibit corrosion of water conveyance systems. The product described by this standard is also known as sodium phosphate, monobasic, anhydrous and liquid.This standard can be referenced in documents for purchasing and receiving monosodium phosphate, anhydrous and liquid, and can be used as a guide for testing the physical and chemical properties of monosodium phosphate samples. The stipulations of this standard apply when this document has been referenced and then only to monosodium phosphate, anhydrous and liquid, used in the treatment of potable water and reclaimed water.