BS 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

Pertains to sodium hypochlorite used for treatment of water intended for human consumption.

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).

NOTE While this standard is not applicable to sodium hypochlorite generated in-situ (see bibliographic reference [7]), the limits for impurities and chemical parameters apply.