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BS EN 12121:2022 – TC

BS EN 12121:2022 – TC

$134.27

Tracked Changes. Chemicals used for treatment of water intended for human consumption. Sodium disulfite

Published By Publication Date Number of Pages
BSI 2022 50
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This document is applicable to sodium disulfite used for treatment of water intended for human consumption. It describes the characteristics of sodium disulfite and specifies the requirements and the corresponding test methods for sodium disulfite. It gives information on its use in water treatment. It also determines the rules relating to safe handling and use (see Annex B).

PDF Catalog

PDF Pages PDF Title
1 30462443
29 A-30404880
30 National foreword
34 European foreword
35 Introduction
36 1 Scope
2 Normative references
3 Terms and definitions
4 Description
4.1 Identification
4.1.1 Chemical name
4.1.2 Synonym or commons name
4.1.3 Relative molecular mass
37 4.1.4 Empirical formula
4.1.5 Chemical formula
4.1.6 CAS-Registry Number
4.1.7 EINECS reference
4.2 Commercial form
4.3 Physical properties
4.3.1 Appearance and odour
4.3.2 Density
4.3.3 Solubility (in water)
4.3.4 Vapour pressure
4.3.5 Boiling point at 100 kPa
4.3.6 Crystallization point
4.3.7 Specific heat
38 4.3.8 Viscosity dynamic
4.3.9 Critical temperature
4.3.10 Critical pressure
4.3.11 Physical hardness
4.4 Chemical properties
5 Purity criteria
5.1 General
5.2 Composition of commercial product
5.3 Impurities and main by-products
39 5.4 Chemical parameters
6 Test methods
6.1 Sampling
6.2 Analyses
6.2.1 General
6.2.2 Main product
40 6.2.3 Impurities
6.2.4 Chemical parameters
44 7 Labelling, transportation, storage
7.1 Means of delivery
45 7.2 Labelling
7.3 Transportation labelling
46 7.4 Marking
7.5 Storage
7.5.1 Long term stability
7.5.2 Storage incompatibilities
47 Annex A (informative) General information on sodium disulfite
48 Annex B (normative) General rules relating to safety
49 Bibliography

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BS EN 12121:2022 - TC
$134.27