NEN EN 12174 : 2013

Foreword
Introduction
1 Scope
2 Normative references
3 Description
     3.1 Identification
     3.2 Commercial form
     3.3 Physical properties
     3.4 Chemical properties
4 Purity criteria
     4.1 General
     4.2 Composition of commercial product
     4.3 Impurities and main by-product
     4.4 Chemical parameters
5 Test methods
     5.1 Sampling
     5.2 Analyses
6 Labelling - Transportation - Storage
     6.1 Means of delivery
     6.2 Risk and safety labelling according to the EU
         Directives
     6.3 Transportation regulations and labelling
     6.4 Marking
     6.5 Storage
Annex A (informative) General information on sodium
                      hexafluorosilicate
A.1 Origin
A.2 Use
Annex B (normative) General rules relating to safety
B.1 Rules for safe handling and use
B.2 Emergency procedures
Bibliography

Applicable to sodium hexafluorosilicate used for treatment of water intended for human consumption. It describes the characteristics of sodium hexafluorosilicate and specifies the requirements and the corresponding test methods for sodium hexafluorosilicate. It gives information on its use in water treatment.