SIST EN ISO 19277:2019

SLOVENSKI STANDARD
SIST EN ISO 19277:2019
01-marec-2019
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Petroleum, petrochemical and natural gas industries - Qualification testing and
acceptance criteria for protective coating systems under insulation (ISO/FDIS
19277:2018)
Erdöl-, petrochemische und Erdgasindustrie - Qualifikationsprüfungen und
Abnahmekriterien für Beschichtungssysteme unter Isolierung (ISO 19277:2018)
Industries du pétrole, de la pétrochimie et du gaz naturel - Essais de qualification des
systèmes de revêtement protecteurs sous isolation (ISO 19277:2018)
Ta slovenski standard je istoveten z: EN ISO 19277:2018
ICS:
75.200 2SUHPD]DVNODGLãþHQMH Petroleum products and
QDIWHQDIWQLKSURL]YRGRYLQ natural gas handling
]HPHOMVNHJDSOLQD equipment
SIST EN ISO 19277:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 19277:2019

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SIST EN ISO 19277:2019


EN ISO 19277
EUROPEAN STANDARD

NORME EUROPÉENNE

December 2018
EUROPÄISCHE NORM
ICS 75.200
English Version

Petroleum, petrochemical and natural gas industries -
Qualification testing and acceptance criteria for protective
coating systems under insulation (ISO 19277:2018)
Industries du pétrole, de la pétrochimie et du gaz Erdöl-, petrochemische und Erdgasindustrie -
naturel - Essais de qualification des systèmes de Qualifikationsprüfungen und Abnahmekriterien für
revêtement protecteurs sous isolation (ISO Beschichtungssysteme unter Isolierung (ISO
19277:2018) 19277:2018)
This European Standard was approved by CEN on 26 November 2018.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a 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 European Standard 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, 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
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 19277:2018 E
worldwide for CEN national Members.

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SIST EN ISO 19277:2019
EN ISO 19277:2018 (E)
Contents Page
European foreword . 3

2

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SIST EN ISO 19277:2019
EN ISO 19277:2018 (E)
European foreword
This document (EN ISO 19277:2018) 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 12 “Materials, equipment and offshore structures for
petroleum, petrochemical and natural gas industries” the secretariat of which is held by NEN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by June 2019, and conflicting national standards shall be
withdrawn at the latest by June 2019.
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, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 19277:2018 has been approved by CEN as EN ISO 19277:2018 without any modification.

3

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SIST EN ISO 19277:2019

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SIST EN ISO 19277:2019
INTERNATIONAL ISO
STANDARD 19277
First edition
2018-12
Petroleum, petrochemical and natural
gas industries — Qualification testing
and acceptance criteria for protective
coating systems under insulation
Industries du pétrole, de la pétrochimie et du gaz naturel — Essais de
qualification des systèmes de revêtement protecteurs sous isolation
Reference number
ISO 19277:2018(E)
©
ISO 2018

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SIST EN ISO 19277:2019
ISO 19277:2018(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2018
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: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved

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SIST EN ISO 19277:2019
ISO 19277:2018(E)

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Performance testing design . 3
4.1 Relationship between artificial testing and natural exposure . 3
4.2 Laboratory tests . 3
4.3 Additional laboratory tests . 4
5 CUI classification environments . 4
6 Test samples . 4
6.1 Test panels . 4
6.2 Steel substrates . 4
6.3 Sampling of coatings . 5
6.4 Number of test panels . 5
6.5 Coating systems . 5
6.5.1 Coating application . 5
6.5.2 Dry film thickness . 5
6.5.3 Overcoating interval . 6
6.5.4 Conditioning . 6
6.5.5 Heat conditioning . 6
6.6 Scribe . 6
6.7 Reference system . 6
7 Test procedures and assessment . 6
7.1 Assessment and acceptance . 6
7.2 Assessment of adhesion and artificial ageing . 6
7.2.1 Adhesion testing before artificial ageing . 6
7.2.2 Artificial ageing . 7
7.2.3 Adhesion testing after artificial ageing . 7
7.3 Thermal cycling test . 8
7.4 Multi-phase CUI cyclic corrosion test . 8
7.4.1 Description of test. 8
7.4.2 Test equipment-apparatus . 8
7.4.3 Test set-up and preparation .11
7.4.4 Test procedure .11
7.4.5 Acceptance .12
8 Optional tests .13
8.1 Optional cryogenic cycling testing .13
8.1.1 General.13
8.1.2 Cryogenic test .13
8.1.3 Adhesion testing after cryogenic test aging .13
8.2 Optional vertical pipe test .14
8.2.1 Application .14
8.2.2 Description of test.14
8.2.3 Test equipment — Apparatus .14
8.2.4 Test process scope .16
8.2.5 Temperature profile calibration .16
8.2.6 Test equipment — Procedure .16
8.3 Additional performance tests .16
9 Test report .17
© ISO 2018 – All rights reserved iii

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SIST EN ISO 19277:2019
ISO 19277:2018(E)

Annex A (informative) Corrosion testing of conditioned and heat conditioned test samples .18
Annex B (informative) Example of test report for CUI coating acceptance .19
Annex C (informative) Example of test report for cryogenic testing .23
Annex D (informative) Example of test report for optional vertical pipe test .24
Bibliography .27
iv © ISO 2018 – All rights reserved

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SIST EN ISO 19277:2019
ISO 19277:2018(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.
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 2018 – All rights reserved v

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SIST EN ISO 19277:2019
ISO 19277:2018(E)

Introduction
Unprotected carbon steel in insulated service with the presence of water and concentrating
contaminants from the atmosphere or surrounding sources can cause accelerated corrosion and lead
to severe metal loss. Additionally, unprotected austenitic and duplex stainless steels can suffer external
chloride-induced stress corrosion cracking if contaminates, such as chlorides from the atmosphere
and or the insulation, are present at the steel surface. Therefore, steel structures under insulation are
normally protected to prevent corrosion-related damage during the operational life required of the
equipment.
There are different ways of protecting steel structures from corrosion under insulation. This document
deals with protection by use of coating when used as part of a system, including insulation and cladding
materials, which can work together to prevent corrosion under insulation (CUI). All components of the
corrosion prevention system are important in achieving adequate corrosion protection. This document
only deals with the coating part of the corrosion protection system with focus on typical CUI coating
environments. Further, this document focuses on accelerated testing protocols and acceptance criteria,
so that interested parties can make informed decisions.
In order to ensure effective corrosion protection of steel structures and equipment, it is necessary for
owners of such structures, planners, consultants, companies carrying out corrosion protection work,
inspectors of protective coatings and manufacturers of coating materials to have at their disposal state-
of-the-art information in a concise form on corrosion protection by coating systems. Such information
has to be as complete as possible, unambiguous and easily understandable to avoid difficulties and
misunderstandings between the interested parties with the practical implementation of protection work.
This document is intended to give the abovementioned information to people who have some technical
knowledge of coatings and the process operations of the equipment. It is assumed that the user of this
document is familiar with other relevant International Standards, in particular those dealing with
surface preparation, inspection/testing of coatings, and relevant regulations.
Future parts of this document are planned to be developed and can include other subjects like higher
temperature, cyclic and intermittent service, testing of coatings for maintenance and repair, tape-
applied coating materials, etc.
vi © ISO 2018 – All rights reserved

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SIST EN ISO 19277:2019
INTERNATIONAL STANDARD ISO 19277:2018(E)
Petroleum, petrochemical and natural gas industries —
Qualification testing and acceptance criteria for protective
coating systems under insulation
1 Scope
This document describes various corrosion under insulation (CUI) environments in refineries and
other related industries and environments, and establishes CUI environmental categories including
operating temperature ranges from −45 °C to 204 °C for topside and aboveground service only. This
document specifies both established and other test methods for the assessment of coatings used for
prevention of CUI for each given environment. This document also provides acceptance criteria for each
CUI environment.
NOTE The test results and acceptance criteria can be considered an aid in the selection of suitable coating
systems. For service or peak temperatures below −45 °C an optional cryogenic test can be incorporated and for
over 204 °C testing acceptance criteria can be agreed between interested parties. Additional or other test and
acceptance measures are possible, but require particular agreement between the interested parties.
This document covers spray-applied coatings applied on new carbon and austenitic stainless steel for
use in CUI service. This document does not cover testing of sacrificial coatings, such as inorganic zinc, as
these coatings can be consumed quickly in wet environments. Developing accelerated corrosion testing
for what can be continuous wet service with sacrificial coatings is beyond the scope of this document.
“Non-through porosity” thermal spray aluminium coatings with greater than 250 µm dry film thickness
can be tested and qualified in accordance with this document. This document does not cover tape and
sheet applied products for use in preventing CUI.
This document does not deal with other aspects of coating degradation, such as those caused by
abrasion, erosion, ultraviolet degradation or other methods that can exist given specific environment
and construction methods.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 554, Standard atmospheres for conditioning and/or testing — Specifications
ISO 1513, Coatings and varnishes — Examination and preparation of samples for testing
ISO 2409, Coatings and varnishes — Cross-cut test
ISO 2812-2, Coatings and varnishes — Determination of resistance to liquids — Part 2: Water
immersion method
ISO 4624, Coatings and varnishes — Pull-off test for adhesion
ISO 4628-2, Coatings and varnishes — Evaluation of degradation of coating coatings — Designation of
intensity, quantity and size of common types of defect — Part 2: Designation of degree of blistering
ISO 4628-3, Coatings and varnishes — Evaluation of degradation of coating coatings — Designation of
intensity, quantity and size of common types of defect — Part 3: Designation of degree of rusting
© ISO 2018 – All rights reserved 1

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SIST EN ISO 19277:2019
ISO 19277:2018(E)

ISO 4628-4, Coatings and varnishes — Evaluation of degradation of coating coatings — Designation of
intensity, quantity and size of common types of defect — Part 4: Designation of degree of cracking
ISO 4628-5, Coatings and varnishes — Evaluation of degradation of coating coatings — Designation of
intensity, quantity and size of common types of defect — Part 5: Designation of degree of flaking
ISO 4628-8, Paints and varnishes — Evaluation of degradation of coatings — Designation of quantity
and size of defects, and of intensity of uniform changes in appearance — Part 8: Assessment of degree of
delamination and corrosion around a scribe
ISO 7384, Corrosion tests in artificial atmospheres — General requirements
ISO 9227, Corrosion tests in artificial atmospheres — Salt spray tests
ISO 12944-6, Paints and varnishes — Corrosion protection of steel structures by protective paint systems —
Part 6: Laboratory performance test methods and associated assessment criteria
ISO 15528, Paints, varnishes and raw materials for paints and varnishes — Sampling
ISO 19840, Paints and varnishes — Corrosion protection of steel structures by protective paint systems —
Measurements of, and acceptance criteria for, the thickness of dry films on rough surfaces
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at https: //www .electropedia .org/
3.1
artificial ageing
procedure designed to accelerate the ageing of a coating system, i.e. to reduce the corrosion-protective
efficiency more rapidly than by natural weathering
[SOURCE: ISO 12944-6:1998, 3.1, modified — ‘paint system’ has been changed to ‘coating system’.]
3.2
corrosion under insulation
CUI
corrosion that is a result of the effect of moisture and contaminants, on the steel surfaces under thermal
insulation
3.3
dry film thickness
DFT
thickness of a coating remaining on the surface when the coating has hardened
3.4
durability
expected life of a protective coating system to the first major maintenance coating
[SOURCE: ISO 12944-8:2017, 3.3, modified — ‘paint system’ has been changed to ‘coating system’ and
‘maintenance painting’ has been changed to ‘maintenance coating’.]
3.5
nominal dry film thickness
NDFT
dry film thickness specified for each coat or for the whole coating system
2 © ISO 2018 – All rights reserved

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SIST EN ISO 19277:2019
ISO 19277:2018(E)

3.6
peak temperature
maximum temperature for the designed system, including possible upsets and temperature reached as
a result of maintenance efforts such as steam cleaning
3.7
sacrificial coating
coating that provides corrosion protection by sacrificing or being consumed in the act of protecting the
substrate
4 Performance testing design
4.1 Relationship between artificial testing and natural exposure
The selection of a coating system for specific conditions should preferably be based on experience from
the use of the system in similar cases. The reason is that the durability of a CUI coating system depends
on many external factors, such as the environment, the design of the structure, the insulation material,
the weather proofing (cladding), the surface preparation, the application, drying procedures, service
temperature, thermal shock, thermal cycling, peak temperature, amount of moisture, contaminants
and other variables.
The durability is also linked to the chemical and physical characteristics of the system, e.g. the type
of binder, the dry film thickness. These CUI related performance characteristics can be evaluated by
artificial tests. Resistance to water or moisture, boiling water, steam interface, electrolytes in the
system, thermal exposure, thermal shock, and thermal cycling are of primary interest.
Artificial tests and durations specified in this document have been selected to help ensure that potential
coating systems will have the characteristics needed for the durability required in the intended service.
Results from artificial tests should be used with caution, because artificial testing will not necessarily
have the same effect as natural exposure. Many factors have an influence on the progress of degradation
and, in the
...