I.S. EN 12121:2022
Current
The latest, up-to-date edition.
Chemicals used for treatment of water intended for human consumption - Sodium disulfite
Hardcopy , PDF
English
08-05-2022
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Dates of withdrawal of national standards are available from NSAI.
European foreword
Introduction
1 Scope
2 Normative references
3 Terms and Definitions
4 Description
5 Purity criteria
6 Test methods
7 Labelling, Transportation, Storage
Bibliography
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