NF EN ISO 11960

ISO 11960:2004 specifies the technical delivery conditions for steel pipes (casing, tubing, plain end casing liners and pup joints), coupling stock and accessories and establishes requirements for three Product Specification Levels (PSL-1, PSL-2, PSL-3). The requirements for PSL-1 are the basis of ISO 11960:2004. The requirements that define different levels of standard technical requirements for PSL-2 and PSL-3, for all Grades except H-40 and L-80 9Cr, are contained in Annex H. ISO 11960:2004 is applicable to the following connections in accordance with API Spec 5B: -- short round thread casing (STC); -- long round thread casing (LC); -- buttress thread casing (BC); -- extreme-line casing (XC); -- non-upset tubing (NU); -- external upset tubing (EU); -- integral joint tubing (IJ). For such connections, ISO 11960:2004 specifies the technical delivery conditions for couplings and thread protection. Supplementary requirements that may optionally be agreed for enhanced leak resistance connections are given in Annex A.11 (SR22). ISO 11960:2004 can also be applied to tubulars with connections not covered by ISO/API standards. For pipes covered by ISO 11960:2004, the sizes, masses and wall thicknesses as well as grades and applicable end finishes are given. By agreement between the purchaser and manufacturer, ISO 11960:2004 can also be applied to other plain end pipe sizes and wall thicknesses. The four groups of products to which ISO 11960:2004 is applicable include the following grades of pipe: -- Group 1: All casing and tubing in Grades H, J, K and N; -- Group 2: All casing and tubing in Grades C, L, M and T; -- Group 3: All casing and tubing in Grade P; -- Group 4: All casing in Grade Q. Casing sizes larger than Label 1: 4-1/2 but smaller than Label 1: 10-3/4 may be specified by the purchaser to be used in tubing service. Supplementary requirements that may optionally be agreed between purchaser and manufacturer for non-destructive examination, coupling blanks, upset casing, electric-welded casing, impact testing, seal ring couplings and certificates are given in Annex A. ISO 11960:2004 is not applicable to threading requirements.

This document specifies the technical delivery conditions for steel pipes (casing, tubing and pup joints), coupling stock, coupling material and accessory material. By agreement between the purchaser and manufacturer, this document can also be applied to other plain-end pipe sizes and wall thicknesses. This document is applicable to the following connections: ? short round thread casing (SC); ? long round thread casing (LC); ? buttress thread casing (BC); ? non-upset tubing (NU); ? external upset tubing (EU); ? integral-joint tubing (IJ). NOTE 1 For further information, see API Spec 5B. For such connections, this document specifies the technical delivery conditions for couplings and thread protection. NOTE 2 Supplementary requirements that can optionally be agreed for enhanced leak resistance connections (LC) are given in A.9 SR22. This document can also be applied to tubulars with connections not covered by ISO or API standards. This document is applicable to products including the following grades of pipe: H40, J55, K55, N80, L80, C90, R95, T95, P110, C110 and Q125. This document is not applicable to threading requirements. NOTE 3 Dimensional requirements on threads and thread gauges, stipulations on gauging practice, gauge specifications, as well as, instruments and methods for inspection of threads are given in API Spec 5B.