This standard describes calcium chloride, CaCl₂, in powder, pellet, granule, flake, or briquette form for use in the treatment of potable water, wastewater, and reused or reclaimed water.

The purpose of this standard is to provide the minimum requirements for calcium chloride, including physical, chemical, sampling, packaging, shipping, and testing requirements.

This standard can be referenced in documents for purchasing and receiving calcium chloride and can be used as a guide for testing the physical and chemical properties of calcium chloride samples. The stipulations for this standard apply when this document has been referenced and then only to calcium chloride used in the treatment of potable water, wastewater, and reused or reclaimed water.