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DNV-OSS-301 Certification and Verification of Pipelines

Sec.3: Service Overview

D: Certification

D400: Verification during construction

Sec.3
D 400   Verification during construction

Sec.3 D

Table 3-3 Scope of work for certification of manufacturing and fabrication of linepipe and other PRESSURE CONTAINING components
Verification activity	Level
	L	M	H
Review of the manufacturing & fabrication process by
— review of manufacturing and fabrication management systems	x	x	x
— audit of the quality management system		x	x
Review of manufacturing & fabrication procedures by
— review manufacturing, fabrication and inspection procedures for confirmation of compliance with the manufacturing specification	x	x	x
— review method statements		x	x
Review of qualification process by
— review the Manufacturing Procedure Specification, (MPS), Manufacturing Procedure Qualification Test (MPQT), if applicable	x	x	x
— full time attendance during MPQT, if applicable, or first day production		x	x
Surveillance during manufacturing and fabrication activities by
— visit-based attendance during testing, to ensure, based on spot checks, that the delivered products have been produced in accordance with the manufacturing specification	x	x	x
— visit-based or full-time attendance during manufacturing and fabrication to ensure, based on spot checks, that the delivered products have been produced in accordance with the manufacturing specification		x	x
— full-time attendance during manufacturing and fabrication to ensure, based on spot checks, that the delivered products have been produced in accordance with the manufacturing specification			x
— FOR LINEPIPE PRODUCTION ONLY: overall independent verification of production must be sufficient for DNV to operate its independent quality system (QVS) to get an independent verification of the delivered pipes			x
Review of final documentation	x	x	x

Sec.3 D

Table 3-4 Scope of work for certification of manufacturing and fabrication of coatings, anodes and other NON-PRESSURE CONTIANING components
Verification activity	Level
	L	M	H
Review of the manufacturing & fabrication process by
— review of manufacturing and fabrication management systems	x	x	x
— audit of the quality management system			x
Review of manufacturing & fabrication procedures by
— review manufacturing, fabrication and inspection procedures for confirmation of compliance with the manufacturing specification		x	x
Review of qualification process by
— review the Manufacturing Procedure Specification, (MPS), Manufacturing Procedure Qualification Test (MPQT), if applicable	x	x	x
— full time attendance during MPQT, if applicable, or first day production			x
Surveillance during manufacturing and fabrication activities by
— visit-based attendance during testing, to ensure, based on spot checks, that the delivered products have been produced in accordance with the manufacturing specification		x	x
— visit-based attendance during manufacturing and fabrication to ensure, based on spot checks, that the delivered products have been produced in accordance with the manufacturing specification			x
Review of final documentation	x	x	x

Guidance note:
Line pipe and other materials may be ordered with certificates of varying degrees of independent 3^rd party verification (e.g. 3.1C according to EN 10204). This can this be integrated in the overall certification activities, so not to duplicate work.

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Sec.3 D

Table 3-5 Scope of work for certification of installation
Verification activity	Level
	L	M	H
Review of the installation process by
— review of installation management systems	x	x	x
— audit of the quality management system		x	x
Review of installation procedures by
— spot check of Installation Manual, (IM)	x	x	x
— for critical operations (identified from the FMEA and HAZOP studies) review the IM		x	x
Review of qualification process by
— for critical operations, review the qualification of the IM	x	x	x
— full time attendance during qualification tests, if applicable, or production start-up		x	x
Surveillance during installation activities by
— visit-based attendance during start up of each offshore operation (i.e. pipelaying, riser installation, intervention works, etc.	x	x	x
— full time attendance during tension trials and associated lay tests: visit- based attendance during laying		x	x
— full time attendance at each offshore operation (i.e. pipelaying, riser installation, intervention works			x
Review of final documentation	x	x	x

Sec.3 D

Table 3-6 Scope of work for certification of final testing for operation, including as-built survey and project completion
Verification activity	Level
	L	M	H
Review of the process by
— review of management systems	x	x	x
— audit of the quality management system			x
Review of procedures by
— review of the procedures for system pressure test to ensure that the test procedure will test the pipeline system in accordance with the design requirements	x	x	x
Surveillance during testing and completion activities by
— full time attendance during pressure testing (minimum 24 hrs)	x	x	x
— full time attendance during testing and audit based attendance during cleaning, gauging, de-watering and drying. Visit-based attendance during as-built surveying			x
Review of final documentation by
— spot check of as-built documentation	x	x	x
— review of as-built documentation			x