NA 109

DIN Standards Committee Petroleum and Natural Gas Industries


Petroleum and natural gas industries - Pipeline transportation systems - Recommended practice for pipeline life extension (ISO/TS 12747:2011)


ISO/TS 12747:2011 gives guidance to follow, as a minimum, in order to assess the feasibility of extending the service life of a pipeline system, as defined in ISO 13623, beyond its specified design life. ISO/TS 12747:2011 applies to rigid metallic pipelines. Pump stations, compressor stations, pressure-reduction stations and depots are not specifically addressed in ISO/TS 12747:2011. ISO/TS 12747:2011 is not applicable to the following: flexible pipelines; pipelines constructed from other materials, such as glass reinforced plastics; umbilicals; topsides equipment; and structures and structural components. ISO/TS 12747:2011 is limited to life extension, which is an example of a change to the original design. Other changes, such as MAOP up-ratings, are excluded. The assessment methodology is applicable to other changes to the design at the discretion of the user.





Planned document number

DIN EN ISO 12747

Project number


Responsible national committee

NA 109-00-02 AA - Pipeline transportation systems 

Responsible european committee

CEN/TC 12 - Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries 

Responsible international committee

ISO/TC 67/SC 2/WG 17 - Pipeline life extension 

previous edition(s)

Petroleum and natural gas industries - Pipeline transportation systems - Recommended practice for pipeline life extension (ISO/TS 12747:2011); English version CEN ISO/TS 12747:2013

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