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)

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 21809-3:2016)

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 (ISO 21809-3:2016)

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 industrija in industrija zemeljskega plina - Zunanje prevleke za cevovode, zakopane v zemljo ali potopljene v vodo, v sistemih cevovodnega transporta - 3. del: Prevleke spojev (ISO 21809-3:2016)

Ta del standarda ISO 21809 določa zahteve za prevleke spojev brezšivnih in varjenih jeklenih cevi v sistemih cevovodnega transporta v industriji nafte in zemeljskega plina, kot je opredeljeno v standardu ISO 13623. Ta del standarda ISO 21809 določa kvalifikacijo, uporabo in preskušanje protikorozijske prevleke na jeklenih površinah, ki ostanejo izpostavljene, ko se cevi in fitingi (komponente) spojijo z varjenjem.
Ta del standarda ISO 21809 ne obravnava dodatne mehanske zaščite, toplotne izolacije ali polnil spojev za prevlečene betonske cevi.
Ta del standarda ISO 21809 opredeljuje in kodificira različne vrste prevlek spojev za cevovode, zakopane v zemljo ali potopljene v vodo, kot je prikazano v preglednici 1.
OPOMBA: Cevi, ki so prevlečene v skladu s tem delom standarda ISO 21809, so predvidoma ustrezne za dodatno katodno zaščito.

General Information

• Status: Published
• Publication Date: 15-Mar-2016
• Withdrawal Date: 29-Sep-2016
• ICS: 23.040.10 - Iron and steel pipes
• ICS: 75.200 - Petroleum products and natural gas handling equipment
• ICS: 87.040 - Paints and varnishes
• Technical Committee: ECISS/TC 110 - Steel tubes, and iron and steel fittings
• Drafting Committee: ECISS/TC 29/SC 4 - Coatings
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 16-Mar-2016
• Completion Date: 16-Mar-2016
• Ref Project: 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)

Relations

• Replaces: EN 10329:2006 - Steel tubes and fittings for onshore and offshore pipelines - External field joint coatings
• Effective Date: 23-Mar-2016
• Amended By: 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)
• Effective Date: 17-May-2017
• Revised: prEN ISO 21809-3 - 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 - ISO 21809-3:2016 (Field joint coatings for pipelines)

EN ISO 21809-3:2016 / ISO 21809-3:2016 specifies requirements for field joint coatings applied to seamless or welded steel pipes for buried or submerged pipeline transportation systems in the petroleum, petrochemical and natural gas industries. The standard covers qualification, application, testing and inspection of corrosion protection coatings applied to steel surfaces left bare after welding of pipes and fittings. It defines and codifies the recognized types of field joint coatings (see Table 1 in the standard) and is intended to ensure durable external corrosion protection of pipeline field joints compatible with plant-applied coatings.

Key topics and technical requirements

• Scope and exclusions: Applies to coatings on welded or joined pipe surfaces for buried/submerged pipelines; does not cover additional mechanical protection, thermal insulation, or joint infills for concrete weight-coated pipes.
• Coating types: Includes hot-applied bituminous tape coatings, petrolatum/wax-based tape coatings and cold-applied polymeric tape coatings (documented application and test methods for each type).
• Qualification and testing: Specifies pre-production trials (PPT), production testing and acceptance criteria including thickness, holiday detection, impact and indentation resistance, peel strength, cathodic disbondment and hot-water immersion tests.
• Surface preparation and application: Requirements for steel substrate and adjacent plant-applied coating preparation, primer application, tape overlap, visual inspection and repair procedures.
• Personnel and traceability: Qualification of coating and inspection personnel, inspection documentation and traceability of applied field joint coatings.
• Compatibility with cathodic protection: Field joints coated in accordance with the standard are considered suitable for further protection by cathodic protection systems.
• Regulatory context: Adopted as EN ISO 21809-3:2016 and prepared by ISO/TC 67; supersedes earlier EN standards.

Practical applications and users

Who uses ISO 21809-3:

• Pipeline operators and owners specifying field joint protection for new and repair works
• Coating manufacturers and suppliers developing field joint systems
• Construction and coating contractors performing on-site welding and coating application
• Inspection and quality assurance personnel conducting tests and acceptance
• Pipeline engineers designing corrosion protection strategies for buried or submerged pipelines

Practical benefits:

• Ensures consistent, tested corrosion protection of welded joints
• Facilitates compliance with pipeline integrity management and procurement specifications
• Improves compatibility and performance when combined with cathodic protection

Related standards

• ISO 13623 (pipeline transportation systems) - referenced scope for pipeline systems
• EN ISO 21809 series (other parts covering plant-applied external coatings)
  (Refer to the published standard for the authoritative normative references, test methods and Table 1 classification.)

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Naftna industrija in industrija zemeljskega plina - Zunanje prevleke za cevovode, zakopane v zemljo ali potopljene v vodo, v sistemih cevovodnega transporta - 3. del: Prevleke spojev (ISO 21809-3:2016)Erdöl- und Erdgasindustrie - Umhüllungen für erd- und wasserverlegte Rohrleitungen in Transportsystemen - Teil 3: Nachumhüllung der Schweißverbindungen (ISO 21809-3:2016)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 (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)75.200Petroleum products and natural gas handling equipment25.220.99Druge obdelave in prevlekeOther treatments and coatingsICS:Ta slovenski standard je istoveten z:EN ISO 21809-3:2016SIST EN ISO 21809-3:2016en01-december-2016SIST EN ISO 21809-3:2016SLOVENSKI
STANDARDSIST EN 10329:20061DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN ISO 21809-3
March
t r s x ICS
y wä t r r Supersedes EN
s r u t {ã t r r xEnglish Version
Petroleum and natural gas industries æ External coatings for buried or submerged pipelines used in pipeline Industries du pétrole et du gaz naturel æ Revêtements externes des conduites enterrées ou immergées utilisées dans les systèmes de transport par conduites æ Erdölæ und Erdgasindustrie æ Umhüllungen für erdæ und wasserverlegte Rohrleitungen in Transportsystemen æ This European Standard was approved by CEN on
s y March
t r s xä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey andUnited Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
t r s x CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN ISO
t s z r {æ uã t r s x ESIST EN ISO 21809-3:2016

ISO 21809-3:2016(E) ii © ISO 2016 – All rights reservedCOPYRIGHT PROTECTED DOCUMENT©
ISO 2016, Published in SwitzerlandAll rights reservedä Unless otherwise speci Ðiedá no part of this publication may be reproduced or utilized otherwise in any form or by any meansá electronic or mechanicalá including photocopyingá or posting on the internet or an intranetá without prior written permissionä Permission can be requested from either ISO at the address below or ISOïs member body in the country of the requester.ISO copyright of ÐiceCh. de Blandonnet 8 • CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. [phone]Fax [phone]copyright 7isoäorgwww.iso.orgSIST EN ISO 21809-3:2016

ISO 21809-3:2016(E) Foreword .ixIntroduction .x1 Scope .12 Normative references .1FuFTermsFandFdeFÐinitions .44 Symbols and abbreviated terms .6 vä s Symbols .64.2 Abbreviated terms .75 General requirements .8 wä s Responsibily of the end user .85.2 Rounding .8 wä u Complianceá testing and quality .86 Information to be supplied by the purchaser.86.1 General information .86.2 Additional information .8FyFApplicationFproceduresFandFqualiFÐication .9 yä s Application pr .97.2 Coating materials .10 yä u Pr .107.4 Pre-production trial (PPT) .11 yä w Quali Ðication of coating and inspection personnel .127.6 Production testing and inspection .12 yä y Inspection documents and traceability .12FzFClassiFÐicationFofFFÐieldFjointFcoatings .129 General requirements for surface preparation, coating application, testing and repair .139.1 Surface preparation .139.1.1 General.139.1.2 Preparation of the steel substrate .149.1.3 Preparation of the adjacent plant-applied coating .159.2 Application of the coating .159.3 Visual inspection of the applied coating .15 {ä v Testing of the
Ðield joint coating .169.5 Repairs .16 {ä x Veri Ðicationá handling and storage of coating materials .1610 Hot-applied bituminous tape coatings .16 s rä s Coating identi Ðication .1610.2 Description of the coatings .1610.3 Surface preparation .1610.4 Coating application.1610.4.1 General.1610.4.2 Application of the primer .1610.4.3 Application of the bituminous tapes .1710.4.4 Overlap .1710.5 Testing of the applied coatings .1710.5.1 General.1710.5.2 Thickness .17 s rä wä u Holiday detection .1810.5.4 Impact resistance .1810.5.5 Indentation resistance .18 s rä wä x Speci Ðic electrical insulation resistance .18© ISO 2016 – All rights reserved iiiContents PageSIST EN ISO 21809-3:2016

ISO 21809-3:2016(E) 10.5.7 Cathodic disbondment .1810.5.8 Peel strength to pipe surface and plant coating .1810.5.9 Hot-water immersion test .1810.5.10 Lap shear strength .1811 Petrolatum and wax-based tape coatings .22 s sä s Coating identi Ðication .2211.2 Description of the coatings .22 s sä tä s P .22 s sä tä t W
.............................................................................................................................2211.3 Surface preparation .........................................................................................................................................................................2211.4 Coating application...........................................................................................................................................................................2211.4.1 General...................................................................................................................................................................................2211.4.2 Application of the primer ......................................................................................................................................2211.4.3 Application of petrolatum or wax-based tapes ..................................................................................2311.4.4 Overlap ..................................................................................................................................................................................2311.5 Testing of the applied coatings ...............................................................................................................................................2311.5.1 General...................................................................................................................................................................................2311.5.2 Thickness .............................................................................................................................................................................23 s sä wä u Holiday detection .........................................................................................................................................................2311.5.4 Impact resistance .........................................................................................................................................................2311.5.5 Indentation resistance .............................................................................................................................................24 s sä wä x Speci Ðic electrical insulation resistance ....................................................................................................2411.5.7 Cathodic disbondment .............................................................................................................................................2411.5.8 Peel strength to pipe surface and plant coating .................................................................................2411.5.9 Hot-water immersion test ....................................................................................................................................2411.5.10 Drip resistance ................................................................................................................................................................2412 Cold-applied polymeric tape coatings .........................................................................................................................................26 s tä s Coating identi Ðication .....................................................................................................................................................................2612.2 Description of the coatings ........................................................................................................................................................2612.3 Surface preparation .........................................................................................................................................................................2612.4 Coating application...........................................................................................................................................................................2612.4.1 General...................................................................................................................................................................................2612.4.2 Application of the primer ......................................................................................................................................26 s tä vä u Application of polymeric tapes .........................................................................................................................2612.4.4 Overlap ..................................................................................................................................................................................2712.5 Testing of the applied coatings ...............................................................................................................................................2712.5.1 General...................................................................................................................................................................................2712.5.2 Thickness .............................................................................................................................................................................27 s tä wä u Holiday detection .........................................................................................................................................................2712.5.4 Impact resistance .........................................................................................................................................................2712.5.5 Indentation resistance .............................................................................................................................................2712.5.6 Cathodic disbondment .............................................................................................................................................28 s tä wä y Peel strength between tape layers of polymeric tapes ................................................................2812.5.8 Peel strength to pipe surface and plant coating .................................................................................2812.5.9 Hot-water immersion test ....................................................................................................................................2812.5.10 Lap shear strength .......................................................................................................................................................2812.5.11 Thermal ageing resistance ...................................................................................................................................28FsFuFNonæcrystallineFlowæviscosityFpolyoleFÐinFbasedFcoatings .........................................................................................29 s uä s Coating identi Ðication .....................................................................................................................................................................2913.2 Description of the coatings ........................................................................................................................................................3013.3 Surface preparation .........................................................................................................................................................................3013.4 Application of the coatings ........................................................................................................................................................3113.4.1 General...................................................................................................................................................................................3113.4.2 Overlap ..................................................................................................................................................................................3113.5 Testing of the applied coating .................................................................................................................................................3113.5.1 General...................................................................................................................................................................................3113.5.2 Thickness .............................................................................................................................................................................31iv © ISO 2016 – All rights reservedSIST EN ISO 21809-3:2016

ISO 21809-3:2016(E)
s uä wä u Holiday detection .3113.5.4 Impact resistance .3213.5.5 Indentation resistance .32 s uä wä x Speci Ðic electrical insulation resistance .3213.5.7 Cathodic disbondment resistance .32 s uä wä z Peel strength between layers of outer wrap .3213.5.9 Adhesion to pipe surface and plant coating .3213.5.10 Thermal ageing resistance .3313.5.11 Resistance to lap shear .3313.5.12 Hot-water immersion test .33 s uä wä s u Glass transition and crystallization temperatures .3313.5.14 Drip resistance .3314 Coatings based on heat-shrinkable materials .37 s vä s Coating identi Ðication .3714.2 Description of the coatings .3714.2.1 General.37 s vä tä t Type
s vA .37 s vä tä u Types
s vBá
s vC and
s vD .3714.3 Surface preparation .3814.4 Application of the coatings .3814.4.1 General.3814.4.2 Application of the primer .3814.4.3 Application of heat-shrinkable materials .3814.4.4 Overlap .3914.5 Testing of the applied coatings .3914.5.1 General.3914.5.2 Thickness .39 s vä wä u Holiday detection .3914.5.4 Peel strength .4014.5.5 Cathodic disbondment .4014.5.6 Hot-water immersion test .4014.5.7 Impact resistance .4014.5.8 Indentation resistance .4014.5.9 Lap shear strength .40 s vä wä s r Thermal ageing resistance and thermal stability .4014.5.11 Bursting strength.4014.5.12 Oxidation induction time .4115 Hot-applied microcrystalline wax coatings .45 s wä s Coating identi Ðication .4515.2 Description of the coating .4515.3 Surface preparation .4515.4 Application of the coating .4515.4.1 General.45 s wä vä t Application of the microcrystalline wax .4515.4.3 Application of the outer wrap .4615.4.4 Application of wax top coat .4615.5 Testing of the applied coatings .4615.5.1 General.4615.5.2 Thickness .46 s wä wä u Holiday detection .4615.5.4 Adhesion .4615.5.5 Hardness .4616 Elastomeric coatings .48 s xä s Coating identi Ðication .4816.2 Description of the coatings .4816.3 Surface preparation .4816.4 Application of the coatings .48© ISO 2016 – All rights reserved vSIST EN ISO 21809-3:2016

ISO 21809-3:2016(E) 16.4.1 General.4816.4.2 In situ vulcanization method .4816.4.3 Ambient-cure adhesive method .4916.5 Testing of the applied coatings .4916.5.1 General.4916.5.2 Visual appearance .4916.5.3 Coating thickness .49 s xä wä v Holiday detection .4916.5.5 Hardness .4916.5.6 Adhesion .4916.5.7 Hot-water immersion test .5016.5.8 Cathodic disbondment .50 s xä wä { Density .5016.5.10 Rheometer curve — Oscillating disc .5016.5.11 Tensile strength .5016.5.12 Elongation at break .5016.5.13 Tear strength .50 s xä wä s v Electrical volume resistivity .5016.5.15 Ozone resistance .5116.5.16 Resistance to seawater .5117 Fusion-bonded epoxy (FBE) powder coatings .53 s yä s Coating identi Ðication .5317.2 Description of the coatings .5317.3 Surface preparation .5317.4 Application of the coatings .5417.4.1 General.54 s yä vä t Transport and storage of epoxy powder .5417.4.3 Heating .54 s yä vä v Application of epoxy powder .5417.5 Testing of the applied coatings .5517.5.1 General.5517.5.2 Visual appearance .5517.5.3 Thickness .55 s yä wä v Holiday detection .5517.5.5 Adhesion .5517.5.6 Degree of cure .5517.5.7 Impact resistance .5517.5.8 Cathodic disbondment .5517.5.9 Hot-water immersion test .56 s yä wä s r Flexibility .5618 Liquid-applied coatings .56 s zä s Coating identi Ðication .5618.2 Description of the coatings .56 s zä tä s Liquid epoxy
..................................................................................................................................................56 s zä tä t Liquid polyurethane
................................................................................................................................56 s zä tä u Fibre reinforced epoxy
..........................................................................................................................56 s zä tä v Fibre reinforced vinyl ester
..............................................................................................................56 s zä tä w Cast polyurethane
.....................................................................................................................................5718.3 Surface preparation .........................................................................................................................................................................5718.4 Application of the coatings ........................................................................................................................................................5718.4.1 General.............................................................................................................................
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