90.60 Close of review Mar 4, 2026
CEN
CEN/TC 164 Water supply
European Norm
71.100.80 Chemicals for purification of water
Published
This European Standard is applicable only to sodium thiosulfate and not to mixtures with other chemicals used for treatment of swimming pool water. It describes the characteristics of sodium thiosulfate and specifies the requirements and the corresponding test methods for sodium thiosulfate. It gives information on its use in swimming water treatment. It also determines the rules relating to safe handling and use (see Annex A).
PUBLISHED
EN 16399:2013
90.60
Close of review
Mar 4, 2026