EN 12904:2005

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Description
5 Physical properties
6 Chemical properties
7 Test methods
8 Labelling - Transportation - Storage
Annex A (informative) General information on silica sand
                      and silica gravel
Bibliography

This document is applicable to silica sand and silica gravel used for treatment of water intended for human consumption. It describes the characteristics of silica sand and silica gravel and specifies the requirements and the corresponding test methods for silica sand and silica gravel. It gives information on their use in water treatment.