2019DIN EN 938/A1:2019 Chemicals used for treatment of water intended for human consumption - Sodium chlorite; German and English version EN 938:2016/prA1:2019
2016DIN EN 938:2016-09 Chemicals used for treatment of water intended for human consumption - Sodium chlorite; German version EN 938:2016 / Note: This standard is part of the DVGW body of rules.*To be amended by DIN EN 938/A1 (2019-07).
2016DIN EN 938:2016 Chemicals used for treatment of water intended for human consumption - Sodium chlorite