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Nederlandse norm
NEN-ISO 15590-1
(en)
Petroleum and natural gas industries - Induction
bends, fittings and flanges for pipeline
transportation systems - Part 1: Induction bends
(ISO 15590-1:2009,IDT)
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Vervangt NEN-ISO 15590-1:2001
ICS 75.200
december 2009
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NEN-ISO 15590-1
Voorbeeld
Als Nederlandse norm is aanvaard:
- ISO 15590-1:2009,IDT
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Normcommissie 310004 "Transportleidingen"
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NEN-ISO 15590-1:2009
INTERNATIONAL
STANDARD
ISO
15590-1
Second edition
2009-11-15
Voorbeeld
Petroleum and natural gas industries —
Induction bends, fittings and flanges for
pipeline transportation systems —
Part 1:
Induction bends
Industries du pétrole et du gaz naturel — Coudes d'induction, raccords
et brides pour systèmes de transport par conduites —
Partie 1: Coudes d'induction
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Reference number
ISO 15590-1:2009(E)
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© ISO 2009

ISO 15590-1:2009(E)
NEN-ISO 15590-1:2009
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COPYRIGHT PROTECTED DOCUMENT
© ISO 2009
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
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Published in Switzerland
ii
© ISO 2009 – All rights reserved
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NEN-ISO 15590-1:2009
ISO 15590-1:2009(E)
Contents
Page
Voorbeeld
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Foreword............................................................................................................................................................ iv
Introduction ........................................................................................................................................................ v
1 Scope ..................................................................................................................................................... 1
2 Conformance......................................................................................................................................... 1
2.1 Units of measurement .......................................................................................................................... 1
2.2 Rounding ............................................................................................................................................... 1
2.3 Compliance to standard....................................................................................................................... 2
3 Normative references ........................................................................................................................... 2
4 Terms and definitions........................................................................................................................... 4
5 Symbols and abbreviated terms ......................................................................................................... 6
5.1 Symbols ................................................................................................................................................. 6
5.2 Abbreviated terms ................................................................................................................................ 6
6 Designation ........................................................................................................................................... 7
7 Pressure rating and design ................................................................................................................. 7
8 Information that shall be supplied by the purchaser ........................................................................ 8
8.1 General information.............................................................................................................................. 8
8.2 Additional information.......................................................................................................................... 8
8.3 Information on the mother pipe........................................................................................................... 9
9 Manufacturing ....................................................................................................................................... 9
9.1 Mother pipe............................................................................................................................................ 9
9.2 Qualification test bend ....................................................................................................................... 10
9.3 Production bending ............................................................................................................................ 10
9.4 Post-bending heat treatment ............................................................................................................. 10
9.5 Forming and sizing after bending ..................................................................................................... 10
9.6 Strip/plate end welds.......................................................................................................................... 11
9.7 Jointers and girth welds .................................................................................................................... 11
9.8 End preparation .................................................................................................................................. 11
10 Testing and inspection....................................................................................................................... 11
10.1 General requirements......................................................................................................................... 11
10.2 Extent of testing and inspection ....................................................................................................... 12
10.3 Chemical composition........................................................................................................................ 12
10.4 Physical testing................................................................................................................................... 12
10.5 Non-destructive testing...................................................................................................................... 19
10.6 Dimensions.......................................................................................................................................... 20
10.7 Gauging ............................................................................................................................................... 23
10.8 Hydrostatic testing ............................................................................................................................. 23
11 Inspection document.......................................................................................................................... 23
12 Marking ................................................................................................................................................ 23
Annex A (normative) Manufacturing procedure specification .................................................................... 25
Annex B (normative) PSL 2S bends ordered for sour service .................................................................... 27
Bibliography ..................................................................................................................................................... 32
© ISO 2009 – All rights reserved iii
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ISO 15590-1:2009(E)
NEN-ISO 15590-1:2009
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
Voorbeeld
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 15590-1 was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore structures
for petroleum, petrochemical and natural gas industries, Subcommittee SC 2, Pipeline transportation systems.
This second edition cancels and replaces the first edition (ISO 15590-1:2001), which has been technically
revised.
It is the intent of ISO/TC 67 that the first and second edition of ISO 15590-1 both be applicable, at the option
of the purchaser (as defined in 4.20), for a period of six months from the first day of the calendar quarter
immediately following the date of publication of this second edition, after which period ISO 15590-1:2001 will
no longer be applicable.
ISO 15590 consists of the following parts, under the general title Petroleum and natural gas industries —
Induction bends, fittings and flanges for pipeline transportation systems:
⎯ Part 1: Induction bends
⎯ Part 2: Fittings
⎯ Part 3: Flanges
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iv
© ISO 2009 – All rights reserved
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NEN-ISO 15590-1:2009
ISO 15590-1:2009(E)
Voorbeeld
Introduction
This International Standard makes reference to line pipe and bends with delivery conditions based on
ISO 3183. Following significant revision of ISO 3183 (ISO 3183:2007), ISO 15590-1 has been reviewed and
redrafted taking cognizance of the changes to ISO 3183. In addition to general revision, and in common with
ISO 3183:2007, the Technical Committee have introduced additional requirements for special applications as
follows:
⎯ Manufacturing procedure specification (Annex A);
⎯ PSL 2 bends for sour service (Annex B).
The requirements of the annexe(s) apply only when it is (they are) specified on the purchase order.
This International Standard does not provide guidance on when it is necessary to specify the above
supplementary requirements. Instead it is the responsibility of the purchaser to specify, based upon the
intended use and design requirements, which, if any, of the supplementary requirements apply for a particular
purchase order.
It is necessary that users of this part of ISO 15590 be aware that further or differing requirements can be
needed for individual applications. This part of ISO 15590 is not intended to inhibit a manufacturer from
offering, or the purchaser from accepting, alternative equipment or engineering solutions for the individual
application. This can be particularly applicable where there is innovative or developing technology. Where an
alternative is offered, it is the responsibility of the manufacturer to identify any variations from this part of
ISO 15590 and provide details.
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© ISO 2009 – All rights reserved v
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NEN-ISO 15590-1:2009
Voorbeeld
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Dit document is een voorbeeld van NEN / This document is a preview by NEN

NEN-ISO 15590-1:2009
INTERNATIONAL STANDARD
ISO 15590-1:2009(E)
Voorbeeld
Petroleum and natural gas industries — Induction bends,
fittings and flanges for pipeline transportation systems —
Part 1:
Induction bends
1 Scope
This part of ISO 15590 specifies the technical delivery conditions for bends made by the induction bending
process for use in pipeline transportation systems for the petroleum and natural gas industries as defined in
ISO 13623.
This part of ISO 15590 is applicable to induction bends made from seamless and welded pipe of unalloyed or
low-alloy steels.
NOTE These are typically C-Mn steels or low-alloy steels that are appropriate for the corresponding level and grade
of line pipe in accordance with ISO 3183.
This part of ISO 15590 specifies the requirements for the manufacture of two product specification levels
(PSLs) of induction bend corresponding to product specification levels given for pipe in ISO 3183.
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This part of ISO 15590 is not applicable to the selection of the induction bend product specification level. It is
the responsibility of the purchaser to specify the PSL, based upon the intended use and design requirements;
see also ISO 3183:2007, Introduction.
This part of ISO 15590 is not applicable to pipeline bends made by other manufacturing processes.
2 Conformance
2.1 Units of measurement
In this International Standard, data are expressed in both SI units and USC units. For a specific order item,
unless otherwise stated, only one system of units shall be used, without combining data expressed in the
other system.
For data expressed in SI units, a comma is used as the decimal separator and a space is used as the
thousands separator. For data expressed in USC units, a dot (on the line) is used as the decimal separator
and a space is used as the thousands separator.
2.2 Rounding
Unless otherwise stated in this International Standard, to determine conformance with the specified
requirements, observed or calculated values shall be rounded to the nearest unit in the last right-hand place of
figures used in expressing the limiting value, in accordance with ISO 31-0:1992, Annex B, Rule A.
NOTE For the purposes of this provision, the rounding method of ASTM E29-04 [2] is equivalent to ISO 31-0:1992,
Annex B, Rule A.
© ISO 2009 – All rights reserved 1
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