NEN EN 1918-4 : 2016

Foreword
Introduction
1 Scope
2 Definitions
3 General
3.1 Long-term containment of stored products
3.2 Environmental conservation
3.3 Safety
3.4 Monitoring
4 Design
4.1 Design principles
4.2 Geological exploration
4.3 Hydraulic containment
4.4 Determination of the maximum operating pressure
4.5 Caverns stability
4.6 Construction parameters
4.7 Lines connecting caverns to surface
4.8 Monitoring systems
4.9 Neighbouring subsurface activities
5 Construction
6 Testing and commissioning
6.1 Air pressure test
6.2 First filling
7 Operation, monitoring and maintenance
7.1 Operation principles
7.2 Monitoring
7.3 Maintenance