EN ISO 14922:2021
(Main)Thermal spraying - Quality requirements for manufacturers of thermal sprayed coatings (ISO 14922:2021)
Thermal spraying - Quality requirements for manufacturers of thermal sprayed coatings (ISO 14922:2021)
This document specifies quality requirements for manufacturers of thermal sprayed coatings to ensure quality assurance for activities in the field of production.
NOTE It is independent of the availability of a quality management system, e.g. ISO 9001, ISO 14001 and ISO 45001, which concern the concept and organization of the quality management.
This document defines the quality requirements that are of importance for the manufacturing route.
This document is applicable to thermal spraying including all the pre- and post-treatments of the whole coating process for new parts, for repairs and maintenance (e.g. after service) at the workshop or on site.
Thermisches Spritzen - Qualitätsanforderungen für Hersteller von thermisch gespritzten Schichten (ISO 14922:2021)
Dieses Dokument legt Qualitätsanforderungen für Hersteller von thermisch gespritzten Schichten fest, um die Qualitätssicherung für Tätigkeiten im Bereich der Produktion sicherzustellen.
ANMERKUNG Es ist unabhängig von der Verfügbarkeit eines Qualitätsmanagementsystems, z. B. ISO 9001, ISO 14001 und ISO 45001, die sich mit dem Konzept und der Organisation des Qualitätsmanagements befassen.
Dieses Dokument definiert die Qualitätsanforderungen, die für den Fertigungsweg von Bedeutung sind.
Dieses Dokument gilt für das thermische Spritzen einschließlich aller Vor- und Nachbehandlungen des gesamten Beschichtungsverfahrens für neue Bauteile, für Reparaturen und Instandsetzungsarbeiten (z. B. nach Betrieb) in den Werkstätten oder auf der Baustelle.
Projection thermique - Exigences qualité pour les fabricants de revêtement projeté thermiquement (ISO 14922:2021)
Le présent document spécifie les exigences de qualité destinées aux fabricants de revêtements projetés thermiquement afin de garantir l’assurance qualité des activités dans le domaine de la production.
NOTE Ces exigences sont indépendantes de celles relatives à un système de management de la qualité, par exemple l’ISO 9001, l’ISO 14001 et l’ISO 45001, qui concerne le concept et l’organisation du management de la qualité.
Le présent document définit les exigences de qualité importantes dans le processus de fabrication.
Le présent document est applicable à la projection thermique, y compris à tous les prétraitements et post-traitements de l’intégralité du mode d’application, sur les éléments neufs, en réparation et en entretien (par exemple après service), en atelier ou sur site.
Vroče brizganje - Zahteve za kakovost za proizvajalce vroče brizganih prevlek (ISO 14922:2021)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2021
Nadomešča:
SIST EN ISO 14922-1:2000
SIST EN ISO 14922-2:2000
SIST EN ISO 14922-3:2000
SIST EN ISO 14922-4:2000
Vroče brizganje - Zahteve za kakovost za proizvajalce vroče brizganih prevlek (ISO
14922:2021)
Thermal spraying - Quality requirements for manufacturers of thermal sprayed coatings
(ISO 14922:2021)
Thermisches Spritzen - Qualitätsanforderungen für Hersteller von thermisch gespritzten
Schichten (ISO 14922:2021)
Projection thermique - Exigences qualité pour les fabricants de revêtement projeté
thermiquement (ISO 14922:2021)
Ta slovenski standard je istoveten z: EN ISO 14922:2021
ICS:
25.220.20 Površinska obdelava Surface treatment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 14922
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2021
EUROPÄISCHE NORM
ICS 25.220.20 Supersedes EN ISO 14922-1:1999, EN ISO 14922-
2:1999, EN ISO 14922-3:1999, EN ISO 14922-4:1999
English Version
Thermal spraying - Quality requirements for
manufacturers of thermal sprayed coatings (ISO
14922:2021)
Projection thermique - Exigences qualité pour les Thermisches Spritzen - Qualitätsanforderungen für
fabricants de revêtement projeté thermiquement (ISO Hersteller von thermisch gespritzten Schichten (ISO
14922:2021) 14922:2021)
This European Standard was approved by CEN on 31 August 2021.
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, 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
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 14922:2021 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 14922:2021) has been prepared by Technical Committee ISO/TC 107 "Metallic
and other inorganic coatings" in collaboration with Technical Committee CEN/TC 240 “Thermal
spraying and thermally sprayed coatings” the secretariat of which is held by DIN.
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 April 2022, and conflicting national standards shall be
withdrawn at the latest by April 2022.
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.
This document supersedes EN ISO 14922-1:1999, EN ISO 14922-2:1999, EN ISO 14922-3:1999 and
EN ISO 14922-4:1999.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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 14922:2021 has been approved by CEN as EN ISO 14922:2021 without any modification.
INTERNATIONAL ISO
STANDARD 14922
First edition
2021-09
Thermal spraying — Quality
requirements for manufacturers of
thermal sprayed coatings
Projection thermique — Exigences qualité pour les fabricants de
revêtement projeté thermiquement
Reference number
ISO 14922:2021(E)
©
ISO 2021
ISO 14922:2021(E)
© ISO 2021
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.
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Email: copyright@iso.org
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Published in Switzerland
ii © ISO 2021 – All rights reserved
ISO 14922:2021(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Quality requirements for manufacturers and thermal sprayed coatings .3
4.1 General . 3
4.2 Quality requirements for the manufacturer . 3
4.2.1 General. 3
4.2.2 Requirements for the quality assurance — Selection of the quality
assurance level. 3
4.3 Selection of the quality requirements for the thermal sprayed coating — quality
requirement classes . 3
4.3.1 General. 3
4.3.2 Quality requirement class QRC1 . 4
4.3.3 Quality requirement class QRC2 . 4
4.3.4 Quality requirement class QRC3 . 4
4.4 Selection of the quality requirements for thermal spraying . 4
4.5 Designation of the quality assurance level . 4
Annex A (informative) Flow diagram for selection of thermal spraying quality requirements .5
Annex B (normative) Requirements to the factory in accordance with QAL-C, QAL-S, and QAL-E .7
Annex C (normative) Quality elements and measures covering the quality assurance in
accordance with the comprehensive, standard and elementary requirements .9
Bibliography .22
ISO 14922:2021(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 107, Metallic and other inorganic coatings,
in collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/
TC 240, Thermal spraying and thermally sprayed coatings, in accordance with the Agreement on technical
cooperation between ISO and CEN (Vienna Agreement).
This first edition of ISO 14922 cancels and replaces ISO 14922-1:1999, ISO 14922-2:1999,
ISO 14922-3:1999 and ISO 14922-4:1999, which have been technically revised. The main changes
compared with the previous editions are as follows:
— the four parts have been consolidated into one document;
— the requirements for the manufacturer now correspond to those of the parts;
— the weighting of requirements with +++ / ++ / + have been updated and are now requirements;
— the requirements have been separated: the quality assurance requirements former classified in 1,
2, 3 now clear as QRC and QAL C, S, E, the three assessment groups as comprehensive requirements,
standard (normal) requirements, elementary requirements titled and presented in direct
comparison in three columns in Annex C;
— the dependence on ISO 9001 has been removed;
— decision on QAL C, S, E by customer or manufacturer itself.
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.
iv © ISO 2021 – All rights reserved
ISO 14922:2021(E)
Introduction
Thermal spraying processes are widely applied for producing industrial products and are mainly
applied for preventive protection of surfaces. The application can take place both within the workshop
as well as on site. Measures for the maintenance of worn coatings or of surfaces on components are
also in the field of use. Thermal spraying can be found in all industries, but especially in the aerospace,
stationary gas turbine, automotive, machinery construction, printing and chemical, and oil extraction
and refining fluid control industries, as well as for medical purposes and for steel construction in the
field of off-shore and on-shore, etc. Usually coatings are applied for anticorrosive and/or anti-wear
purposes, high temperature protection and against chemical attack, as well as for aesthetic or electrical
reasons.
Thermal spraying belongs to the so-called "special processes", where the quality of the coating cannot
be unambiguously determined by testing without damaging the component. For an adequate use of
thermal sprayed coatings and in order to avoid quality or cost-intensive problems when manufacturing
and during service time, conditions and processes must be controlled. Therefore, a functional quality
assurance system is made available for the coating factory, if necessary, in additional to a quality
management system (e.g. ISO 9001).
This document provides three different levels of quality requirements (comprehensive level C, standard
level S and elementary level E). These requirements can be defined by the customer’s design engineering
relating to the thermal sprayed coating or to the component.
The main elements of the quality assurance of the entire thermal spraying process for different
applications in accordance with quality assurance levels C, S and E are listed in Annex B or Annex C.
They can be used to check the proper function of the quality assurance system when applying a quality
audit.
This document specifies requirements, tests and the scope of tests when qualifying the manufacturer.
The specific requirements of the qualifying procedure in accordance with the quality assurance level C,
S or E can be given by the general requirements of the quality management system of the company or a
contract.
This document together with the relevant quality level can be stipulated by the customer/designer
in order to require a minimum of quality assurance measures for the manufacturing of his or her
component.
The requirements specified in this document can be helpful when a quality assurance system is being
established.
INTERNATIONAL STANDARD ISO 14922:2021(E)
Thermal spraying — Quality requirements for
manufacturers of thermal sprayed coatings
1 Scope
This document specifies quality requirements for manufacturers of thermal sprayed coatings to ensure
quality assurance for activities in the field of production.
NOTE It is independent of the availability of a quality management system, e.g. ISO 9001, ISO 14001 and
ISO 45001, which concern the concept and organization of the quality management.
This document defines the quality requirements that are of importance for the manufacturing route.
This document is applicable to thermal spraying including all the pre- and post-treatments of the whole
coating process for new parts, for repairs and maintenance (e.g. after service) at the workshop or on
site.
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 9712, Non-destructive testing — Qualification and certification of NDT personnel
ISO 12690, Metallic and other inorganic coatings — Thermal spray coordination — Tasks and
responsibilities
ISO 14917, Thermal spraying — Terminology, classification
ISO 14918, Thermal spraying — Qualification testing of thermal sprayers
ISO 14923, Thermal spraying — Characterization and testing of thermally sprayed coatings
EN 1395-1, Thermal spraying — Acceptance inspection of thermal spraying equipment — Part 1: General
requirements
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 14917 and the following 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 http:// www .electropedia .org/
3.1
contract
requirements for the coating or for the component to be coated agreed between the contracting parties,
e.g. by specification, drawing, manufacturing instructions.
Note 1 to entry: In order to avoid coordination problems between the contracting parties, it is essential to
indicate a reference to the standard, including the publication date, according to which a contract was defined
ISO 14922:2021(E)
3.2
special process
manufacturing process, including surface preparation and certain post-treatments, where the results
of manufacturing cannot be confirmed entirely by subsequent quality and product tests and where, for
example, manufacturing faults might only be shown after putting the product into service
Note 1 to entry: For this document, "special process" refers to thermal spraying.
3.3
coating manufacturer
person or organization responsible for thermal spraying production
3.4
thermal spraying coordinator
person who is trained and qualified, e.g. in accordance with ISO 12690 or equivalent
Note 1 to entry: Such training may be the ETSS (European Thermal Spraying Specialist) in accordance with the
EWF Guideline 459.
3.5
thermal sprayer
person who is trained and qualified in accordance with ISO 14918 or equivalent or qualified by job
reference specimens for a particular application
Note 1 to entry: Such a training may be the ETS (European Thermal Sprayer) in accordance with the EWF
Guideline 507.
3.6
component
part, structure or construction that is partially or entirely covered by a thermal sprayed coating
3.7
quality assurance level
QAL
systematic measures in the field of production/manufacturing, for maintaining the internally or
externally required quality of the production/manufacturing processes with regard to the components
(3.6)
3.8
quality requirement class
QRC
classification that defines requirements for the coating and relates to its importance for the proper
function and safety of the components (3.6)
3.9
factory quality control
FQC
internal functioning unit of a company that is independent of the production unit and that is responsible
for keeping the intended or required quality guidelines
Note 1 to entry: FQC can be ensured by quality audits.
3.10
thermal spray procedure specification
TSPS
instructions for thermal spraying including any necessary parameters
Note 1 to entry: Instructions for pre- and post-treatment can be part of the TSPS.
2 © ISO 2021 – All rights reserved
ISO 14922:2021(E)
4 Quality requirements for manufacturers and thermal sprayed coatings
4.1 General
Using this document, the quality requirements for the manufacturer for thermal spraying can be
selected in such a way that they fulfil the requirements for the component to be coated. In accordance
with 4.2 to 4.5, the appropriate level shall be selected in accordance with the importance of the thermal
spray coating for the function and safety of the component.
4.2 Quality requirements for the manufacturer
4.2.1 General
Planned manufacturing, an adequate control, and testing of the manufacturing are sufficient measures
in order to ensure the required function of components with thermal sprayed coatings. The establishing
of an adequate quality assurance system is an appropriate measure for a successful production and
completion in the time schedule and serves to avoid reworks or other additional measures.
In general, the manufacturer establishes the quality assurance system in accordance with the
components to be coated and the requirements of the coatings.
Different requirements, which form the basis of establishing and defining a quality assurance system
for thermal spraying, are listed in Annex C in accordance with the levels C, S and E.
Audits, which can be executed by an external test organization or internally by a department (FQC)
independent from the production, shall safeguard the functionality of the system and shall check that
the stipulated conditions are maintained.
It is a task and responsibility of the company’s executive officers to establish a regular cycle for carrying
out external or internal quality assurance audits in accordance with the rules.
4.2.2 Requirements for the quality assurance — Selection of the quality assurance level
The appropriate quality assurance level (QAL) C, S or E can be selected in relation to the quality
requirement class (QRC), which is given by the required properties of the sprayed coating and its
importance for the proper function and safety of the component. For details, see 4.4.
The requirements of the factory related to the QAL are:
— quality requirements for the manufacturer in accordance with QAL-C: comprehensive quality
requirements;
— quality requirements for the manufacturer in accordance with QAL-S: standard quality requirements;
— quality requirements for the manufacturer in accordance with QAL-E: elementary quality
requirements.
4.3 Selection of the quality requirements for the thermal sprayed coating — quality
requirement classes
4.3.1 General
The QRC depends on the requirements of the sprayed coating and its importance for the proper
function and safety of the component. It can be required by the customer, by an agreement between the
contracting parties or by a general determination of the executing company itself. The specific level of
the requirements is specified as given in 4.3.2 to 4.3.4.
ISO 14922:2021(E)
4.3.2 Quality requirement class QRC1
Coatings of QRC1 are those where the function of the coating performs a main element of the design
and has a decisive influence on the function of the component. In the case of its failure under service
conditions, the function of the component or of a main part of it will be lost.
4.3.3 Quality requirement class QRC2
Coatings of QRC2 are those that support the function of a component. In the case of its failure under
service conditions, the function of the component or of a main part of it will be impaired. However, a
safe service is safeguarded for a certain but limited time.
4.3.4 Quality requirement class QRC3
Coatings of QRC3 are those where the function of a component does not depend on the functionality
of the coating. In the case of its failure under service conditions, the function of the component or of a
main part of it will not be impaired.
4.4 Selection of the quality requirements for thermal spraying
In general, components which have a QRC of 1 are likely to require the manufacturer to use a QAL
of C, whereas those with a QRC of 2 or 3 can require a QAL of S or E. However, this shall be decided
by an assessment of the function of the coatings and the complexity of their production. The QAL
may, for instance, be upgraded where repair is very difficult or downgraded if the required coating
is very insensitive to process variations. Annex A, Figure A.1, presents a flow chart for defining the
requirements.
The instructions given in Table B.1 regarding the importance of different elements for the quality
assurance for the different systems C, S and E shall be followed.
The requirements specified in Table C.1 regarding the quality assurance elements for the quality
assurance system comprehensive requirements, standard (normal) requirements and elementary
requirements shall be followed.
4.5 Designation of the quality assurance level
The designation of the required quality assurance system shall include a reference to this document
and the status of the requirements. The requirements shall be specified as follows:
— in the case of comprehensive requirements: ISO 14922-C:2021;
— in the case of standard (normal) requirements: ISO 14922-S:2021;
— in the case of elementary requirements: ISO 14922-E:2021.
4 © ISO 2021 – All rights reserved
ISO 14922:2021(E)
Annex A
(informative)
Flow diagram for selection of thermal spraying quality
requirements
ISO 14922:2021(E)
Figure A.1 — Flow diagram for selection of thermal spraying quality requirements
6 © ISO 2021 – All rights reserved
ISO 14922:2021(E)
Annex B
(normative)
Requirements to the factory in accordance with QAL-C, QAL-S, and
QAL-E
Requirements to the factory in accordance with QAL-C, QAL-S and QAL-E are given in Table B.1.
Table B.1 — Requirements to the factory in accordance with QAL-C, QAL-S and QAL-E
Code Quality elements — Requirements C S E
1 Contract review +++ ++ +
2 Design review (safe coatability) +++ ++ +
3 Subcontracting +++ ++ +
4 Personal qualification and training (subject and safety related) +++ +++ ++
4.1 Personal qualification for thermal sprayer, +++ +++ +
a
in accordance with ISO 14918, job reference specimen
4.2 Personal qualification for thermal spraying coordinator, +++ ++ +
in accordance with ISO 12690
5.1 Personal qualification for inspection in general +++ ++ +
5.2 Personal qualification for inspection personnel, +++ ++ +
in accordance with ISO 9712, if applicable
b
Procurement (materials, tools) +++ ++ +
6.1 Equipment for production (machines, blasting and spray equipment,
equipment for post-treatments, cranes, lifting devices, etc.)
b
6.2 Description of the equipment +++ ++ +
6.3 Suitability of the equipment, in accordance with EN 1395-1 +++ ++ +
b
6.4 New equipment, in accordance with EN 1395-1 +++ ++ +
b
7 Maintenance of equipment (planning, execution) +++ ++ +
8 Health and environmental aspects +++ +++ +++
9 Process control, work preparation, procurement of spray and auxiliary +++ ++ +
material, production course, testing, supporting services (maintenance,
dispatch)
9.1 Production planning, work sequence plan +++ ++ +
9.2 Establishment of a TSPS +++ ++ +
9.3 Qualification of the TSPS by a procedure qualification or by experience +++ ++ +
9.4 Work instruction for surface preparation and post-treatments +++ ++ +
9.5 Establishment of a test plan, determination of test procedures, +++ ++ +
scope of testing
9.6 Performance of manufacturing +++ ++ ++
Key
+++ = comprehensive requirements; ++ = standard requirements; + = elementary requirements; - = no deliver proof
necessary.
a
Job reference specimen shall be applied for specific applications only.
b
Belongs to ISO 9001 and shall be checked only when not audited by ISO 9001.
c
Usually supply instructions inclusive data sheet with order instructions are compared. A batch testing can be necessary
in special cases only or in the case of contract requirements.
ISO 14922:2021(E)
Table B.1 (continued)
Code Quality elements — Requirements C S E
c
10.1 Identification of the spray material +++ +++ ++
10.2 Storage and handling of thermal spray material +++ ++ ++
Products delivered by the customer
11.1 Testing of incoming material (identification, completeness, damages, dif- +++ +++ ++
ferences of contract conditions) (complaint management)
b
11.2 Storage and handling of packing and dispatch +++ ++ +
12.1 Testing before thermal spraying +++ +++ ++
12.2 Inspection during thermal spraying +++ ++ +
12.3 Testing after thermal spraying +++ ++ +
12.4 Status of testing, in time documentation of finished works and testing +++ ++ +
b
13 Test equipment calibration +++ ++ +
14 Management of defective products +++ +++ +
b
15 Corrective measures in the case of inadmissible imperfections +++ ++ +
b
16 Marking
...
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