SIST EN ISO 21809-3:2016/A1:2020

Petroleum and natural gas industries - External coatings for buried or submerged pipelines used in pipeline transportation systems - Part 3: Field joint coatings - Amendment 1: Introduction of mesh-backed coating systems (ISO 21809-3:2016/Amd 1:2020)

Erdöl- und Erdgasindustrie - Umhüllungen für erd- und wasserverlegte Rohrleitungen in Transportsystemen - Teil 3: Nachumhüllung der Schweißverbindungen - Berichtigung 1 (ISO 21809-3:2016/Amd 1:2020)

Industries du pétrole et du gaz naturel - Revêtements externes des conduites enterrées ou immergées utilisées dans les systèmes de transport par conduites - Partie 3: Revêtements des joints soudés sur site - Amendement 1 (ISO 21809-3:2016/Amd 1:2020)

Naftna industrija in industrija zemeljskega plina - Zunanje prevleke za cevovode, zakopane v zemljo ali potopljene v vodo, v transportnih cevovodnih sistemih - 3. del: Prevleke cevovodnih spojev - Dopolnilo A1: Uvedba z mrežo utrjenih sistemov prevlek (ISO 21809-3:2016/Amd 1:2020)

General Information

• Status: Published
• Public Enquiry End Date: 14-Jul-2019
• Publication Date: 27-Apr-2020
• ICS: 25.220.99 - Other treatments and coatings
• ICS: 75.200 - Petroleum products and natural gas handling equipment
• Technical Committee: IFEK - Ferrous metals
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 09-Apr-2020
• Due Date: 14-Jun-2020
• Completion Date: 28-Apr-2020
• Ref Project: EN ISO 21809-3:2016/A1:2020 - Petroleum and natural gas industries - External coatings for buried or submerged pipelines used in pipeline transportation systems - Part 3: Field joint coatings - Amendment 1: Introduction of mesh-backed coating systems (ISO 21809-3:2016/Amd 1:2020)

Relations

• Amends: SIST EN ISO 21809-3:2016 - Petroleum and natural gas industries - External coatings for buried or submerged pipelines used in pipeline transportation systems - Part 3: Field joint coatings (ISO 21809-3:2016)
• Effective Date: 17-May-2017
• Revised: oSIST prEN ISO 21809-3:2025 - Oil and gas industries including lower carbon energy - External coatings for buried or submerged pipelines used in pipeline transportation systems - Part 3: Field joint coatings (ISO/DIS 21809-3:2025)
• Effective Date: 30-Apr-2025

Overview

SIST EN ISO 21809-3:2016/A1:2020 is a European amendment to the international standard ISO 21809-3:2016. It focuses on external coatings for buried or submerged pipelines in the petroleum and natural gas industries, specifically addressing field joint coatings. This amendment introduces mesh-backed coating systems, aimed at enhancing protection of pipeline weld joints against corrosion and mechanical damage during operation.

Developed by ISO/TC 67 and CEN/TC 459/SC 10, this standard aligns with best practices in pipeline transportation systems, offering detailed specifications for cold-applied polymeric tape coatings with continuous or mesh backing. It ensures improved durability and reliability of pipeline systems transporting oil, gas, and other petroleum products.

Key Topics

• Field Joint Coatings Types
  The amendment defines two main types of cold-applied polymeric tape coatings for field joints:

  • Type 12A: Tape coatings with a polymeric continuous backing.
  • Type 12B: Tape coatings with a polymeric mesh backing, incorporating a woven fabric for enhanced mechanical strength.

• Temperature Ratings
  Both coating types are subdivided based on maximum service temperature ratings, such as ≤50 °C, ≤80 °C, and ≤120 °C for Type 12A, and ≤50 °C and ≤80 °C for Type 12B.

• Surface Preparation Requirements
  Proper surface preparation is crucial to ensure coating adhesion and performance, with requirements for abrasive blast cleaning or power tool cleaning depending on coating type. The steel surface is prepared to specific cleanliness and roughness standards to optimize coating application.

• Application Procedures
  Application instructions include primer use where applicable, spirally wrapping tapes with appropriate overlap and tension to prevent defects like tenting, and guidelines for ensuring coating consistency across the joint and over the weld cap.

• Testing and Quality Control
  Detailed testing protocols are outlined to verify coating quality and performance, including:

  • Thickness measurement
  • Holiday detection (to find coating voids or discontinuities)
  • Impact and indentation resistance
  • Cathodic disbondment resistance
  • Peel strength between tape layers, to pipe surface, and plant coating
  • Hot-water immersion, lap shear strength, and thermal aging tests

These tests ensure the coatings provide effective corrosion protection and mechanical durability in pipeline service conditions.

Applications

This standard is essential for operators, contractors, and manufacturers involved in pipeline construction and maintenance within the petroleum and natural gas industries. It specifically targets pipelines that are buried underground or submerged underwater, where external coatings protect against corrosion, soil stress, and environmental factors.

Typical applications include:

• Onshore and offshore pipeline field joint protection
• Pipeline weld joint coating for transportation of crude oil, natural gas, refined products, and petrochemicals
• Maintenance and repair coatings for pipeline integrity management
• Projects requiring compliance with European and international standards on pipeline coatings

Implementing SIST EN ISO 21809-3:2016/A1:2020 ensures enhanced reliability and extended service life of pipelines by using advanced mesh-backed coating technology for critical joint areas.

Related Standards

• ISO 21809-1: External coatings for pipelines – Part 1: Pipeline coatings
• ISO 21809-2: External coatings – Part 2: Fusion bonded epoxy coating for pipelines
• ISO 8501 series: Preparation grades of steel surfaces for coating
• ISO 8504 series: Surface preparation methods for steel substrates
• EN ISO 21809-3:2016: Base standard for field joint coatings without mesh backing
• ISO 2178: Methods for measuring non-magnetic coatings thickness

These related standards provide a comprehensive framework for pipeline coating materials, surface preparation, application methods, and quality assurance, complementing the requirements of SIST EN ISO 21809-3:2016/A1:2020.

---

Keywords: EN ISO 21809-3, pipeline external coatings, field joint coatings, mesh-backed coating systems, petroleum industry pipeline standards, pipeline corrosion protection, cold-applied polymeric tape, pipeline transportation systems, weld joint coatings, pipeline surface preparation, pipeline coating testing

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2020
Naftna industrija in industrija zemeljskega plina - Zunanje prevleke za cevovode,
zakopane v zemljo ali potopljene v vodo, v transportnih cevovodnih sistemih - 3.
del: Prevleke cevovodnih spojev - Dopolnilo A1: Uvedba z mrežo utrjenih sistemov
prevlek (ISO 21809-3:2016/Amd 1:2020)
Petroleum and natural gas industries - External coatings for buried or submerged
pipelines used in pipeline transportation systems - Part 3: Field joint coatings -
Amendment 1: Introduction of mesh-backed coating systems (ISO 21809-3:2016/Amd
1:2020)
Erdöl- und Erdgasindustrie - Umhüllungen für erd- und wasserverlegte Rohrleitungen in
Transportsystemen - Teil 3: Nachumhüllung der Schweißverbindungen - Berichtigung 1
(ISO 21809-3:2016/Amd 1:2020)
Industries du pétrole et du gaz naturel - Revêtements externes des conduites enterrées
ou immergées utilisées dans les systèmes de transport par conduites - Partie 3:
Revêtements des joints soudés sur site - Amendement 1 (ISO 21809-3:2016/Amd
1:2020)
Ta slovenski standard je istoveten z: EN ISO 21809-3:2016/A1:2020
ICS:
25.220.99 Druge obdelave in prevleke Other treatments and
coatings
75.200 Oprema za skladiščenje Petroleum products and
nafte, naftnih proizvodov in natural gas handling
zemeljskega plina equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 21809-3:2016/A1
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2020
EUROPÄISCHE NORM
ICS 75.200
English Version
Petroleum and natural gas industries - External coatings
for buried or submerged pipelines used in pipeline
transportation systems - Part 3: Field joint coatings -
Amendment 1: Introduction of mesh-backed coating
systems (ISO 21809-3:2016/Amd 1:2020)
Industries du pétrole et du gaz naturel - Revêtements Erdöl- und Erdgasindustrie - Umhüllungen für erd- und
externes des conduites enterrées ou immergées wasserverlegte Rohrleitungen in Transportsystemen -
utilisées dans les systèmes de transport par conduites - Teil 3: Nachumhüllung der Schweißverbindungen -
Partie 3: Revêtements des joints soudés sur site - Änderung 1 (ISO 21809-3:2016/Amd 1:2020)
Amendement 1: Introduction de systèmes de
revêtement à support maillé (ISO 21809-3:2016/Amd
1:2020)
This amendment A1 modifies the European Standard EN ISO 21809-3:2016; it was approved by CEN on 6 March 2020.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of
this amendment into the relevant national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This amendment exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 21809-3:2016/A1:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 21809-3:2016/A1:2020) has been prepared by Technical Committee ISO/TC 67
"Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries"
in collaboration with Technical Committee CEN/TC 459/SC 10 “Steel tubes, and iron and steel fittings”
the secretariat of which is held by UNI.
This Amendment to the European Standard EN ISO 21809-3:2016 shall be given the status of a national
standard, either by publication of an identical text or by endorsement, at the latest by October 2020,
and conflicting national standards shall be withdrawn at the latest by October 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 21809-3:2016/Amd 1:2020 has been approved by CEN as EN ISO 21809-
3:2016/A1:2020 without any modification.

INTERNATIONAL ISO
STANDARD 21809-3
Second edition
2016-03-01
AMENDMENT 1
2020-03
Petroleum and natural gas
industries — External coatings for
buried or submerged pipelines used
in pipeline transportation systems —
Part 3:
Field joint coatings
AMENDMENT 1: Introduction of mesh-
backed coating systems
Industries du pétrole et du gaz naturel — Revêtements externes
des conduites enterrées ou immergées utilisées dans les systèmes de
transport par conduites —
Partie 3: Revêtements des joints soudés sur site
AMENDEMENT 1: Introduction de systèmes de revêtement à
support maillé
Reference number
ISO 21809-3:2016/Amd.1:2020(E)
©
ISO 2020
ISO 21809-3:2016/Amd.1:2020(E)

© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved

ISO 21809-3:2016/Amd.1:2020(E)

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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso .org/
iso/ foreword .html.
This document 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, in collaboration with the European Committee for Standardization (CEN)
Technical Committee CEN/TC 459 ECISS — European Committee for Iron and Steel Standardization,
Subcommittee SC 10, Steel tubes, and iron and steel fittings, in accordance with the Agreement on
technical cooperation between ISO and CEN (Vienna Agreement).
A list of all parts in the ISO 21809 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
ISO 21809-3:2016/Amd.1:2020(E)
Petroleum and natural gas industries — External coatings
for buried or submerged pipelines used in pipeline
transportation systems —
Part 3:
Field joint coatings
AMENDMENT 1: Introduction of mesh-backed coating systems

Clause 8, Table 1
Replace the following row:
Clause Code Type of field joint coating
12 12 Cold-applied polymeric tape coatings
with
Clause Code Type of field joint coating
12A Cold-applied tape coatings with
...