DIN EN 12732:2000-09

National foreword
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Quality system
5 Welding consumables
6 Production welding
7 Special procedures
8 Inspection of the weld joint
9 Documentation
10 Specific requirements for gas infrastructure
   with a MOP up to and including 16 bar
11 Specific requirements for gas infrastructure
   with a MOP greater than 16 bar
12 Specific requirements for metering, regulating
   and compressor stations
Annex A (informative) - Qualification procedure for
        pipeline welders (Girth welds and branch connections)
Annex B (informative) - Testing of lamination defects
Annex C (informative) - Time-of-flight diffraction technique (TOFD)
Annex D (informative) - Critical aspects for hot-tap welding or
        welding on in-service pipelines
Annex E (informative) - Visual examination of joints
Annex F (informative) - Manual ultrasonic testing of weld joints
        for wall thickness between approximately 6 mm and 8 mm
Annex G (normative) - Acceptance criteria - Recommendations
        for on-site production welds
Annex H (informative) - Brazing and aluminothermic welding
        of leads for cathodic protection systems
Annex I (informative) - Significant technical changes between
        this European Standard and the previous edition
Bibliography

Covers requirements for the production and testing of weld joints for the installation and modification of onshore steel pipelines and pipework used in gas infrastructure, including in-service pipelines, for all pressure ranges for the carriage of processed, non-toxic and non-corrosive natural gas and for the carriage of non-conventional gases such as injected biomethane.