NEN EN 12007-1 : 2012

Foreword
1 Scope
2 Normative references
3 Definitions and abbreviations
4 Quality
    4.1 Quality management
    4.2 Competence
5 Gas characteristics
    5.1 Gas quality and family
    5.2 Odorization
    5.3 Toxicidity and lack of oxygen
6 Materials
7 Design
    7.1 General
    7.2 Basic design data
    7.3 Pressure relationships
    7.4 Pipeline sections
    7.5 Service lines
    7.6 Pressure regulating stations and
          installations
    7.7 Measuring stations
    7.8 Valves
    7.9 Corrosion protection
8 Limiting environmental impact
9 Transportation, storage and handling of materials
10 Construction
    10.1 General
    10.2 Connections to existing systems
11 Pressure tasting
12 Commissioning and decommissioning
13 Operation, survey and maintenance
    13.1 General
    13.2 Record system and traceability
    13.3 Operation centres
    13.4 Pipeline operator's works
    13.5 Third party works
    13.6 Leakage surveys and public reported gas
          escapes
    13.7 Repair and maintenance
    13.8 Emergency record system
14 Emergency plan or intervention plan