scope:

This standard describes disodium phosphate, anhydrous, for use in the treatment of potable water, wastewater, and reclaimed water. The product described is also known as sodium hydrogen phosphate, with the salt in anhydrous form. Disodium phosphate, anhydrous, is an orthophosphate used, as formulated and in blends, to inhibit corrosion of potable water conveyance systems. The product described by this standard is also known as sodium phosphate, dibasic, anhydrous.

Purpose

The purpose of this standard is to provide minimum requirements for disodium phosphate, anhydrous, including physical, chemical, sampling, packaging, shipping, and testing requirements.