UNI EN 973 : 2009

Foreword
Introduction
1 Scope
2 Normative references
3 Description
  3.1 Identification
  3.2 Commercial forms
  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-products
  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 in accordance with the EU
      directives
  6.3 Transportation regulations and labelling
  6.4 Marking
  6.5 Storage
Annex A (informative) - General information on sodium
        chloride
Annex B (normative) - Analytical methods
Annex C (informative) - Determination of cadmium,
        chromium, nickel and lead (flame atomic absorption
        spectrometry
Annex D (informative) - Determination of arsenic, antimony
        and selenium (atomic absorption spectrometry hydride
        technique)
Bibliography

Applies to sodium chloride intended for use only in water treatment apparatus, for the regeneration of ion exchangers, intended for water for human consumption. Details the characteristics and specifies the requirements and the corresponding test methods for sodium chloride. Also provides information on its use in water treatment.