NEN EN ISO 11961 : 2008 C1 2009

1 Scope
2 Normative references
3 Definitions
4 Information to be supplied by the purchaser
5 Process of manufacture
   5.1 General
   5.2 Heat treatment
   5.3 Traceability
6 Material requirements
   6.1 Chemical requirements
   6.2 Mechanical properties requirements
7 Dimensions, masses, tolerances and pipe ends
   7.1 Dimensions and masses
   7.2 Diameter
   7.3 Wall thickness
   7.4 Mass
   7.5 Length
   7.6 Straightness
   7.7 Drift requirements
   7.8 Tolerances on dimensions and masses
   7.9 Pipe ends
8 Inspection and testing
   8.1 General
   8.2 Chemical composition
   8.3 Mechanical properties
   8.4 Dimensional testing and mass determination
   8.5 Visual inspection
   8.6 Non-destructive inspection
   8.7 Test methods and results
   8.8 Invalidation of tests
   8.9 Retests
9 Marking
   9.1 General
   9.2 Pipe markings
   9.3 Die-stamped markings
   9.4 Paint-stencilled markings
   9.5 Pipe processor markings
10 Coatings
11 Documents
   11.1 Certification
   11.2 Retention of records
Annexes
A Pipe Properties
B Supplementary requirements
C Purchaser inspection

Defines the technical delivery conditions for steel drill pipes with upset pipe body ends and weld-on tool joints for use in drilling and production operations in petroleum and natural gas industries for three Product Specification Levels (PSL-1, PSL-2 and PSL-3).