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12/30258182 DC : 0

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

BS EN 12121 - CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - SODIUM DISULFITE
Available format(s)

Hardcopy , PDF

Superseded date

28-02-2013

Language(s)

English

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 disulfite
Annex B (normative) - General rules relating to
        safety
Bibliography

BS EN 12121

Committee
CII/59
DocumentType
Draft
Pages
20
PublisherName
British Standards Institution
Status
Superseded
SupersededBy

Standards Relationship
PREN 12121 : DRAFT 2012 Identical

ISO 3165:1976 Sampling of chemical products for industrial use — Safety in sampling
ISO 6353-1:1982 Reagents for chemical analysis — Part 1: General test methods
ISO 3629:2000 Photography Processing chemicals Specifications for potassium metabisulfite
ISO 9297:1989 Water quality Determination of chloride Silver nitrate titration with chromate indicator (Mohr's method)
ISO 3696:1987 Water for analytical laboratory use — Specification and test methods
ISO 22743:2006 Water quality Determination of sulfates Method by continuous flow analysis (CFA)
EN ISO 3696:1995 Water for analytical laboratory use - Specification and test methods (ISO 3696:1987)
ISO 6206:1979 Chemical products for industrial use — Sampling — Vocabulary
ISO 5993:1979 Sodium hydroxide for industrial use — Determination of mercury content — Flameless atomic absorption spectrometric method
ISO 8213:1986 Chemical products for industrial use — Sampling techniques — Solid chemical products in the form of particles varying from powders to coarse lumps

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