50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks Aug 20, 2026
CEN
CEN/TC 164 Water supply
European Norm
71.100.80 Chemicals for purification of water
This document is applicable to iron (II) sulfate heptahydrate and iron (II) sulfate monohydrate used for treatment of water intended for human consumption. It describes the characteristics of iron (II) sulfate heptahydrate and monohydrate, specifies the requirements and the corresponding analytical methods and gives information on their use in water treatment. It also specifies the rules relating to safe handling (Annex B) and describes the use of iron (II) sulfate (Annex A).
PUBLISHED
EN 889:2023
IN_DEVELOPMENT
FprEN 889
50.20
Proof sent to secretariat or FDIS ballot initiated: 8 weeks
Aug 20, 2026