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 Composition of commercial product
    4.2 Impurities and main by-products
    4.3 Toxic substances
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 tetrasodium
pyrophosphate
Annex B (informative) Bibliography