prEN ISO 21809-3
(Main)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)
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)
ISO 21809-3:2016 specifies requirements for field joint coating of seamless or welded steel pipes for buried and submerged sections of pipeline transportation systems used in the petroleum, petrochemical and natural gas industries as defined in ISO 13623. This part of ISO 21809 specifies the qualification, application and testing of the corrosion protection coatings applied to steel surfaces left bare after the joining of pipes and fittings (components) by welding.
ISO 21809-3:2016 defines and codifies in Table 1 the different types of field joint coatings for pipelines.
ISO 21809-3:2016 does not address requirements for additional mechanical protection, for thermal insulation or for joint infills of concrete weight-coated pipes.
NOTE Field joints of pipes and fittings coated in accordance with this part of ISO 21809 are considered suitable for further protection by means of cathodic protection.
Erdöl- und Erdgasindustrie - Umhüllungen für erd- und wasserverlegte Rohrleitungen in Transportsystemen - Teil 3: Nachumhüllung der Schweißverbindungen (ISO/DIS 21809-3:2025)
Industries du pétrole et du gaz, y compris les énergies à faible teneur en carbone - Revêtements externes des conduites enterrées ou immergées utilisées dans les systèmes de transport par conduites - Partie 3: Revêtements des joints réalisés sur site (ISO/DIS 21809-3:2025)
L'ISO 21809-3:2016 spécifie les exigences relatives au revêtement des joints soudés sur site des tubes en acier sans soudure et soudés destinés aux tronçons enterrés ou immergés des systèmes de transport par conduites utilisés dans les industries du pétrole, de la pétrochimique et du gaz naturel, tels que définis dans l'ISO 13623. La présente partie de L'ISO 21809-3:2016 spécifie la qualification, l'application et les essais relatifs aux revêtements de protection contre la corrosion appliqués aux surfaces d'acier laissées nues après l'assemblage des tubes et raccords (composants) par soudage.
L'ISO 21809-3:2016 définit et codifie dans le Tableau 1 les différents types de revêtement des joints soudés sur site pour conduites.
L'ISO 21809-3:2016 ne traite pas des exigences relatives à la protection mécanique complémentaire, l'isolation thermique ou le remplissage des joints des tubes lestés avec du béton.
NOTE Les joints soudés sur site des tubes et raccords revêtus conformément à la présente partie de L'ISO 21809-3:2016 sont considérés comme étant adaptés à une protection cathodique complémentaire.
Naftna in plinska industrija, vključno z nizkoogljično energijo - Zunanje prevleke za cevovode, zakopane v zemljo ali potopljene v vodo, v transportnih cevovodnih sistemih - 3. del: Prevleke cevovodnih spojev (ISO/DIS 21809-3:2025)
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Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2025
Naftna in plinska industrija, vključno z nizkoogljično energijo - Zunanje prevleke
za cevovode, zakopane v zemljo ali potopljene v vodo, v transportnih cevovodnih
sistemih - 3. del: Prevleke cevovodnih spojev (ISO/DIS 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)
Erdöl- und Erdgasindustrie - Umhüllungen für erd- und wasserverlegte Rohrleitungen in
Transportsystemen - Teil 3: Nachumhüllung der Schweißverbindungen (ISO/DIS 21809-
3:2025)
Industries du pétrole et du gaz, y compris les énergies à faible teneur en carbone -
Revêtements externes des conduites enterrées ou immergées utilisées dans les
systèmes de transport par conduites - Partie 3: Revêtements des joints réalisés sur site
(ISO/DIS 21809-3:2025)
Ta slovenski standard je istoveten z: prEN ISO 21809-3
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.
DRAFT
International
Standard
ISO/DIS 21809-3
ISO/TC 67/SC 2
Oil and gas industries including
Secretariat: UNI
lower carbon energy — External
Voting begins on:
coatings for buried or submerged
2025-08-05
pipelines used in pipeline
Voting terminates on:
transportation systems —
2025-10-28
Part 3:
Field joint coatings
ICS: 75.200
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
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RECIPIENTS OF THIS DRAFT ARE INVITED
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Reference number
ISO/DIS 21809-3:2025(en)
DRAFT
ISO/DIS 21809-3:2025(en)
International
Standard
ISO/DIS 21809-3
ISO/TC 67/SC 2
Oil and gas industries including
Secretariat: UNI
lower carbon energy — External
Voting begins on:
coatings for buried or submerged
pipelines used in pipeline
Voting terminates on:
transportation systems —
Part 3:
Field joint coatings
ICS: 75.200
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2025
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
BE CONSIDERED IN THE LIGHT OF THEIR
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
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NATIONAL REGULATIONS.
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TO SUBMIT, WITH THEIR COMMENTS,
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NOTIFICATION OF ANY RELEVANT PATENT
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RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION.
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Website: www.iso.org
Published in Switzerland Reference number
ISO/DIS 21809-3:2025(en)
ii
ISO/DIS 21809-3:2025(en)
Contents Page
Foreword .vii
Introduction .viii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 4
4 Symbols and Abbreviated terms . 7
4.1 Symbols .7
4.2 Abbreviated terms .8
5 General requirements . 9
5.1 Responsibility of the end user .9
5.2 Rounding .9
5.3 Compliance, testing and quality .9
6 Information to be supplied . 9
6.1 General .9
6.2 Information to be supplied by the purchaser to the applicator .9
6.3 Information to be supplied by the applicator to the purchaser .10
7 Classification of field joint coatings.11
8 Qualification processes .12
8.1 Qualification of a coating system . 12
8.1.1 Coating Qualification (CQ), originated by the manufacturer . 13
8.1.2 Procedure Qualification Trial (PQT), originated by the applicator .14
8.1.3 Coating System Qualification (CSQ), originated by the applicator . 15
8.1.4 Pre-Production Trial (PPT), originated by the applicator . 15
8.1.5 Inspection and testing during production .16
8.2 Coating application documents .16
8.2.1 Application procedure specification (APS) .16
8.2.2 Inspection and Test Plan (ITP) .19
8.2.3 Inspection and Test Plan (ITP) . 20
8.2.4 Inspection documents, traceability and verification . 20
8.3 Qualification of coating operatives and inspection personnel .21
8.3.1 General .21
8.3.2 Qualification of coating operatives .21
8.3.3 Documentary evidence of applicator’s coating operatives’ qualification . 22
8.3.4 Requalification . 23
9 Surface preparation.23
9.1 General . 23
9.2 Preparation of the steel substrate . 23
9.2.1 General . 23
9.2.2 Abrasive blast-cleaning .24
9.2.3 Wire-brush cleaning.24
9.2.4 Other cleaning methods . 25
9.3 Preparation of the adjacent plant-applied coating. 25
10 Hot-applied bituminous tape coatings .27
10.1 Coating identification .27
10.2 Description of the coatings .27
10.3 Surface preparation .27
10.4 Coating application . 28
10.5 Testing of the applied coatings . 28
10.5.1 General . 28
11 Petrolatum and wax-based tape coatings .30
iii
ISO/DIS 21809-3:2025(en)
11.1 Coating identification . 30
11.2 Description of the coatings . 30
11.2.1 Petrolatum tapes (Type 11A) .
...
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