scope:

This document is applicable to polyaluminium chloride hydroxide silicate used for treatment of water intended for human consumption. It describes the characteristics of polyaluminium chloride hydroxide silicate and specifies the requirements for polyaluminium chloride hydroxide silicate and refers to the corresponding analytical methods. It gives information on its use in water treatment. It also determines the rules relating to safe handling and use of polyaluminium chloride hydroxide silicate (see annex B).