EN 901:2013

Foreword
Introduction
1 Scope
2 Normative references
3 Description
4 Purity criteria
5 Test methods
6 Labelling - transportation - storage
Annex A (informative) - General information on sodium
        hypochlorite
Annex B (normative) - General rules relating to safety
Annex C (normative) - Determination of arsenic,
        antimony and selenium (atomic absorption spectrometry
        hydride technique)
Annex D (normative) - Determination of bromate ion
        content in sodium hypochlorite by liquid
        chromatography of ions and UV detection
Annex E (informative) - Results of inter-laboratory
        tests on sodium bromate determination in
        sodium hypochlorite commercial solutions
Annex F (informative) - Environmental, health and safety
        precautions within chemical laboratories
Bibliography

This European Standard is applicable to sodium hypochlorite used for treatment of water intended for human consumption. It describes the characteristics of sodium hypochlorite and specifies the requirements and the corresponding test methods for sodium hypochlorite. It gives information on its use in water treatment. It also determines the rules relating to safe handling and use of sodium hypochlorite (see Annex B).NOTEWhile this standard is not applicable to sodium hypochlorite generated in-situ (see bibliographic reference [7]), the limits for impurities and chemical parameters apply.