SIST-TS CEN ISO/ASTM/TS 52930:2022

SLOVENSKI STANDARD
SIST-TS CEN ISO/ASTM/TS 52930:2022
01-september-2022
Aditivna proizvodnja - Kvalifikacija - Vgradnja, delovanje in zmogljivost (IQ/OQ/PQ)
opreme za posteljne metode z uporabo laserskega žarka (PBF-LB) (ISO/ASTM/TS
52930:2021)
Additive Manufacturing - Qualification principles - Installation, operation and performance
(IQ/OQ/PQ) of PBF-LB equipment (ISO/ASTM/TS 52930:2021)
Additive Fertigung - Grundlagen der Qualifizierung - Installation, Funktion und Leistung
(IQ/OQ/PQ) von PBF-LB-Anlagen (ISO/ASTM/TS 52930:2021)
Fabrication additive - Principes de qualification - Installation, fonctionnement et
performances (IQ/OQ/PQ) de l'équipement de PBF-LB (ISO/ASTM/TS 52930:2021)
Ta slovenski standard je istoveten z: CEN ISO/ASTM/TS 52930:2021
ICS:
25.030 3D-tiskanje Additive manufacturing
SIST-TS CEN ISO/ASTM/TS 52930:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TS CEN ISO/ASTM/TS 52930:2022

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SIST-TS CEN ISO/ASTM/TS 52930:2022


CEN ISO/ASTM/TS
TECHNICAL SPECIFICATION
52930
SPÉCIFICATION TECHNIQUE

TECHNISCHE SPEZIFIKATION

December 2021
ICS 25.030
English Version

Additive Manufacturing - Qualification principles -
Installation, operation and performance (IQ/OQ/PQ) of
PBF-LB equipment (ISO/ASTM/TS 52930:2021)
Fabrication additive - Principes de qualification - Additive Fertigung - Grundlagen der Qualifizierung -
Installation, fonctionnement et performances Installation, Funktion und Leistung (IQ/OQ/PQ) von
(IQ/OQ/PQ) de l'équipement de PBF-LB PBF-LB-Anlagen (ISO/ASTM/TS 52930:2021)
(ISO/ASTM/TS 52930:2021)
This Technical Specification (CEN/TS) was approved by CEN on 23 July 2021 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to
submit their comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS
available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in
parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached.

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. CEN ISO/ASTM/TS 52930:2021 E
worldwide for CEN national Members.

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CEN ISO/ASTM/TS 52930:2021 (E)
Contents Page
European foreword . 3

2

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SIST-TS CEN ISO/ASTM/TS 52930:2022
CEN ISO/ASTM/TS 52930:2021 (E)
European foreword
This document (CEN ISO/ASTM/TS 52930:2021) has been prepared by Technical Committee ISO/TC
261 "Additive manufacturing" in collaboration with Technical Committee CEN/TC 438 “Additive
Manufacturing” the secretariat of which is held by AFNOR.
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.
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 announce this Technical Specification: 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/ASTM/TS 52930:2021 has been approved by CEN as CEN ISO/ASTM/TS 52930:2021
without any modification.


3

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SIST-TS CEN ISO/ASTM/TS 52930:2022
TECHNICAL ISO/ASTM TS
SPECIFICATION 52930
First edition
2021-11
Additive manufacturing —
Qualification principles —
Installation, operation and
performance (IQ/OQ/PQ) of PBF-LB
equipment
Fabrication additive — Principes de qualification — Installation,
fonctionnement et performances (IQ/OQ/PQ) de l'équipement de PBF-
LB
Reference number
ISO/ASTM TS 52930:2021(E)
© ISO/ASTM International 2021

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SIST-TS CEN ISO/ASTM/TS 52930:2022
ISO/ASTM TS 52930:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO/ASTM International 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. In the United States, such requests should be sent to ASTM International.
ISO copyright office ASTM International
CP 401 • Ch. de Blandonnet 8 100 Barr Harbor Drive, PO Box C700
CH-1214 Vernier, Geneva West Conshohocken, PA 19428-2959, USA
Phone: +41 22 749 01 11 Phone: +610 832 9634
Fax: +610 832 9635
Email: copyright@iso.org Email: khooper@astm.org
Website: www.iso.org Website: www.astm.org
Published in Switzerland
ii
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SIST-TS CEN ISO/ASTM/TS 52930:2022
ISO/ASTM TS 52930:2021(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Abbreviated terms . 2
5 General concepts . 3
5.1 General . 3
5.2 Preliminary considerations . 4
6 Elements of process validation . 4
6.1 General . 4
6.2 Installation qualification (IQ) . 5
6.2.1 General . 5
6.2.2 Specific considerations for installation qualification . 5
6.3 Operational qualification (OQ) . 8
6.3.1 General . 8
6.3.2 Specific considerations for operational qualification . 9
6.4 Performance qualification (PQ) . 11
6.4.1 General . 11
6.4.2 Specific considerations for performance qualification . 11
6.4.3 Deterioration of products . 13
7 Revalidation .13
Annex A (normative) Process capability evaluation (Statistical process control) .15
Bibliography .19
iii
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ISO/ASTM TS 52930:2021(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 261, Additive manufacturing, in
cooperation with ASTM Committee F42, Additive Manufacturing Technologies, on the basis of a
partnership agreement between ISO and ASTM International with the aim to create a common set of
ISO/ASTM standards on Additive Manufacturing, and in collaboration with the European Committee
for Standardization (CEN) Technical Committee CEN/TC 438, Additive manufacturing, in accordance
with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
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
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SIST-TS CEN ISO/ASTM/TS 52930:2022
ISO/ASTM TS 52930:2021(E)
Introduction
Additive manufacturing is a machine-centric process. This document provides recommended practices
for machine-related process qualification for serial production of metal parts produced with the
powder bed fusion by laser beam process (PBF-LB/M). This document is addressed to organizations
that already have a comprehensive quality system in place.
While this document is process specific, it is intended to apply to any industry with strict quality
requirements. In such industries, it is not possible to complete machine qualification without ensuring
repeatable production of the desired process result, given the current state of AM process knowledge.
Operational quality and part performance quality sections are included for this reason.
v
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SIST-TS CEN ISO/ASTM/TS 52930:2022
TECHNICAL SPECIFICATION ISO/ASTM TS 52930:2021(E)
Additive manufacturing — Qualification principles —
Installation, operation and performance (IQ/OQ/PQ) of
PBF-LB equipment
1 Scope
This document addresses installation qualification (IQ), operational qualification (OQ), and
performance qualification (PQ) issues directly related to the additive manufacturing system that
has a direct influence on the consolidation of material. The first three elements of process validation,
process mapping, risk assessment, and validation planning, are necessary pre-conditions to machine
qualification, however, they are outside the scope of this document.
This document covers issues directly related to the AM equipment and does not cover feedstock
qualification or post processing beyond powder removal.
Physical facility, personnel, process and material issues are only included to the extent necessary to
support machine qualification.
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/ASTM 52900, Additive manufacturing — General principles — Fundamentals and vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/ASTM 52900 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
installation qualification
IQ
establishment by objective evidence that all key aspects of the process equipment and ancillary system
installation adhere to the manufacturer’s approved specification and that the recommendations of the
supplier of the equipment are suitably considered
3.2
operational qualification
OQ
establishment by objective evidence process control limits and action levels which result in product
that meets all predetermined requirements
1
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ISO/ASTM TS 52930:2021(E)
3.3
performance qualification
PQ
establishment by objective evidence that the process, under anticipated conditions, consistently
produces a product which meets all predetermined requirements
3.4
calibration
verification of an instrument’s accuracy against a standard
3.5
verification
confirmation by examination and provision of objective evidence that the specified requirements have
been fulfilled
Note 1 to entry: Verification may include end product testing.
3.6
process validation
establishment by objective evidence that a process consistently produces result of product meeting its
predetermined requirements
Note 1 to entry: See Note in 5.1.
3.7
system acceptance test
series of documented procedures and tests agreed between equipment supplier and equipment
purchaser with results meeting predetermined requirements
Note 1 to entry: Satisfactory completion typically constitutes a procurement milestone and can be tied to
payments.
3.8
build interruption
unplanned stop or delay during the build cycle
3.9
means of compliance
method used to satisfy audit requirement
3.10
factory acceptance test
FAT
system acceptance test (3.7) performed at equipment supplier’s facility
3.11
site acceptance test
SAT
system acceptance test (3.7) performed after installation of machine at customer facility
4 Abbreviated terms
The following abbreviated terms are used in this document.
AM additive manufacturing
FAT factory acceptance test
FAI first article inspection
2
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SIST-TS CEN ISO/ASTM/TS 52930:2022
ISO/ASTM TS 52930:2021(E)
IQ installation qualification
NDT non-destructive testing
OQ operational qualification
OEM original equipment manufacturer
PQ performance qualification
SAT site acceptance test
SPC statistical process control
5 General concepts
5.1 General
Assurance of product quality is derived from careful attention to many factors including selection of
parts and materials, product and process design, control of the process, equipment installation and
maintenance, and in-process and end-product testing. By managing these factors, a machine user can
establish confidence that all manufactured units from successive manufacturing lots will be acceptable.
The basic principles of quality assurance have as their goal the production of articles that are fit for
their intended use. These principles can be stated as follows:
— quality, safety, and effectiveness shall be designed and built into the end product;
— acceptable quality of the finished product is dependent upon implementing satisfactory quality
controls throughout the manufacturing process and consideration at the inspection and testing
stage only is not sufficient. Testing and inspection proves the quality of the product;
— each step of the manufacturing process shall be controlled to maximize the probability that the
finished products meet all applicable quality and design specifications.
Process validation is a key element in assuring that these quality assurance goals are met.
NOTE In some industries, for example aerospace, this element is referred to as special process qualification.
Routine end-product testing alone often is not sufficient to assure product quality for several reasons:
a) some end-product tests have limited sensitivity;
b) destructive testing would be required in some cases to show that the manufacturing process was
adequate;
c) in some situations end-product testing does not reveal all variations that can occur in the product
that can impact on safety and effectiveness.
Successfully validating a process can reduce the dependence upon intensive in-process and finished
product testing. It should be noted that in most cases, end-product testing plays a major role in assuring
that quality assurance goals are met (i.e. validation and end-product testing are not mutually exclusive).
Critical process variables shall be identified, monitored and documented by the machine user. Analysis
of the data collected from monitoring will be used to establish the variability of process parameters for
individual runs to assure that the process is under control. The machine user will then verify whether
the equipment and process controls are adequate to enable product specifications to be met. These
activities are part of statistical process control (see 6.3.2 and Annex A).
Finished product and in-process test data can be of value in process validation, particularly in situations
where quality attributes and variabilities can be readily measured. Where finished (or in-process)
testing cannot adequately measure certain attributes, process validation should be derived primarily
3
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ISO/ASTM TS 52930:2021(E)
from qualification of each system used in production and from consideration of the interaction of the
various systems.
5.2 Preliminary considerations
The machine user should evaluate all factors that affect product quality when designing and
undertaking a process validation study. These factors can vary considerably among different products
and manufacturing technologies and could include, for example, component specifications, air and
water handling systems, environmental controls, equipment functions, powder storage and handling
systems, shielding gas storage and delivery systems, and process control operations. No single approach
to process validation will be appropriate and complete in all cases; however, the following quality
activities should be undertaken in most situations:
a) the product's end use is a determining factor in the development of product (and component)
characteristics and specifications;
b) all pertinent aspects of the product that impact safety and effectiveness should be considered
(including performance, reliability and stability);
c) acceptable ranges or limits should be established for each characteristic to set up allowable
variations in critical process variables;
d) ranges should be expressed in readily measurable terms.
Once a product's specification is demonstrated as acceptable, it is important that any changes to the
specification be made in accordance with documented change control procedures.
6 Elements of process validation
6.1 General
Validation shall be considered when a new product is introduced, when there is a change in the product,
or when there is a change in the manufacturing process that can affect the product's characteristics.
The following are considered as key elements:
a) process mapping;
b) risk assessment;
c) validation planning – identify processes that need validation;
d) installation qualification;
e) operational qualification;
f) performance qualification.
While the first three elements listed (process mapping, risk assessment, and validation planning) are
key elements of process validation; they are outside the scope of this guideline. When planning for
validation it is important to take in consideration different sizes of product, structure, and volume of
production.
It is essential that the validation programme is documented and that the documentation is properly
maintained. Approval and release of the process for use in routine manufacturing should be based upon
a review of all the validation documentation, including data from the equipment qualification, process
performance qualification, and product testing to ensure compatibility with the process.
For routine production, it is important to adequately record process details (e.g. time, temperature,
equipment used). Documentation requirements should be part of the machine user’s quality system.
Maintenance logs and build logs can be useful in performing failure investigations concerning a
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ISO/ASTM TS 52930:2021(E)
specific manufacturing lot. Process development data (along with specific test data) can also determine
expected variance in product or equipment characteristics.
6.2 Installation qualification (IQ)
6.2.1 General
Installation qualification studies establish confidence that the process equipment and ancillary systems
are capable of consistently operating within established limits and tolerances. After process equipment
is designed or selected, it should be evaluated and tested to verify that it is capable of operating
satisfactorily within the operating limits required by the process. This phase of validation includes
examination of equipment design, determination of calibration, maintenance, and adjustment of critical
equipment features that could affect the process and product. Information obtained from these studies
should be used to establish written procedures covering equipment calibration, maintenance, set-up,
monitoring, and control.
In assessing the suitability of a given piece of equipment, it is usually insufficient to rely solely upon the
representations of the equipment supplier, or upon experience in producing some other product. Sound
theoretical and practical engineering principles and considerations are a first step in the assessment.
It is important that equipment qualification simulate actual production conditions, including those that
are at extreme limits of the process. These conditions shall be defined and rationalized by the user of
the equipment based on the OEM’s machine specifications.
Tests and challenges should be repeated as necessary to assure reliable and meaningful results. All
acceptance criteria need to be met during the test or challenge. If any test or challenge shows that the
equipment does not perform within its specifications, an evaluation should be performed to identify
the cause of the failure. Corrections should be made, and additional test runs performed as needed, to
verify that the equipment performs within specifications. The observed variability of the equipment
between and within runs can be used as a basis for determining the total number of trials selected for
the subsequent performance qualification studies of the process.
6.2.2 Specific considerations for installation qualification
a) Equipment design validation and installation:
1) system acceptance testing should be completed and documented during the installation.
The equipment supplier should perform a system acceptance test regardless of whether the
equipment purchaser requires one:
i) system acceptance testing can include the following:
aa) factory acceptance testing (FAT) performed at the equipment supplier prior to
delivery:
— equipment purchaser and equipment supplier should agree in advance on FAT
acceptance criteria and data to be collected. Results of the FAT should be documented
and delivered to the machine user;
— if measurements are being taken, verify calibration status for measurement devices;
— as an example of areas that might be included, see ISO/ASTM 52941;
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ISO/ASTM TS 52930:2021(E)
bb) site acceptance testing (SAT) performed following the installation activity at
the equipment user site by the equipment supplier (equipment user involved or
witnessing);
ii) examine equipment design and locate supplied documentation, prints, drawings, and
manuals, including where applicable, software documentation:
aa) establish a filing location to safely retain the supplied equipment documents;
iii) the user should generate or locate a spare parts list with guidance from the OEM;
2) installation conditions:
i) there should be a documented procedure for humidity, temperature and other environmental
conditions (vibration, etc.) for the machine location:
aa) environmental conditions and limits shall be specified by the OEM. Verification that
the facility is in compliance and able to adequately control and monitor environmental
...

SLOVENSKI STANDARD
kSIST FprCEN ISO/ASTM/TS 52930:2021
01-maj-2021
[Not translated]
Additive Manufacturing - Qualification principles - Installation, operation and performance
(IQ/OQ/PQ) of PBF-LB equipment (ISO/ASTM PRF TS 52930:2021)
Additive Fertigung - Grundlagen der Qualifizierung - Installation, Funktion und Leistung
(IQ/OQ/PQ) von PBF-LB-Anlagen ( ISO/ASTM PRF TS 52930:2021)
Fabrication additive - Principes de qualification - Installation, fonctionnement et
performances (IQ/OQ/PQ) de l'équipement de PBF-LB ( ISO/ASTM PRF TS
52930:2021)
Ta slovenski standard je istoveten z: FprCEN ISO/ASTM/TS 52930
ICS:
25.030 3D-tiskanje Additive manufacturing
kSIST FprCEN ISO/ASTM/TS 52930:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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kSIST FprCEN ISO/ASTM/TS 52930:2021

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kSIST FprCEN ISO/ASTM/TS 52930:2021
TECHNICAL ISO/ASTM TS
SPECIFICATION 52930
First edition
Additive manufacturing —
Qualification principles —
Installation, operation and
performance (IQ/OQ/PQ) of PBF-LB
equipment
Fabrication additive — Principes de qualification — Installation,
fonctionnement et performances (IQ/OQ/PQ) de l'équipement de PBF-
LB
PROOF/ÉPREUVE
Reference number
ISO/ASTM TS 52930:2021(E)
©
ISO/ASTM International 2021

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kSIST FprCEN ISO/ASTM/TS 52930:2021
ISO/ASTM TS 52930:2021(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO/ASTM International 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. In the United States, such requests should be sent to ASTM International.
ISO copyright office ASTM International
CP 401 • Ch. de Blandonnet 8 100 Barr Harbor Drive, PO Box C700
CH-1214 Vernier, Geneva West Conshohocken, PA 19428-2959, USA
Phone: +41 22 749 01 11 Phone: +610 832 9634
Fax: +610 832 9635
Email: copyright@iso.org Email: khooper@astm.org
Website: www.iso.org Website: www.astm.org
Published in Switzerland
ii PROOF/ÉPREUVE© ISO/ASTM International 2021 – All rights reserved

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kSIST FprCEN ISO/ASTM/TS 52930:2021
ISO/ASTM TS 52930:2021(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Abbreviated terms . 2
5 General concepts . 3
5.1 General . 3
5.2 Preliminary considerations . 4
6 Elements of process validation . 4
6.1 General . 4
6.2 Installation qualification (IQ) . 5
6.2.1 General. 5
6.2.2 Specific considerations for installation qualification . 5
6.3 Operational qualification (OQ) . 8
6.3.1 General. 8
6.3.2 Specific considerations for operational qualification . 9
6.4 Performance qualification (PQ) .11
6.4.1 General.11
6.4.2 Specific considerations for performance Qualification .11
6.4.3 Deterioration of products.13
7 Revalidation.13
Annex A (normative) Process capability evaluation (Statistical process control) .15
Bibliography .19
© ISO/ASTM International 2021 – All rights reserved PROOF/ÉPREUVE iii

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kSIST FprCEN ISO/ASTM/TS 52930:2021
ISO/ASTM TS 52930:2021(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 261, Additive manufacturing, in
cooperation with ASTM Committee F42, Additive Manufacturing Technologies, on the basis of a
partnership agreement between ISO and ASTM International with the aim to create a common set of
ISO/ASTM standards on Additive Manufacturing.
iv PROOF/ÉPREUVE© ISO/ASTM International 2021 – All rights reserved

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kSIST FprCEN ISO/ASTM/TS 52930:2021
ISO/ASTM TS 52930:2021(E)

Introduction
Additive manufacturing is a machine-centric process. This document provides recommended practices
for machine-related process qualification for serial production of metal parts produced with the
powder bed fusion by laser beam process (PBF-LB/M). This document is addressed to organizations
that already have a comprehensive quality system in place.
While this document is process specific, it is intended to apply to any industry with strict quality
requirements. In such industries, it is not possible to complete machine qualification without ensuring
repeatable production of the desired process result, given the current state of AM process knowledge.
Operational quality and part performance quality sections are included for this reason.
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TECHNICAL SPECIFICATION ISO/ASTM TS 52930:2021(E)
Additive manufacturing — Qualification principles —
Installation, operation and performance (IQ/OQ/PQ) of
PBF-LB equipment
1 Scope
This document addresses installation qualification (IQ), operational qualification (OQ), and
performance qualification (PQ) issues directly related to the additive manufacturing system that
has a direct influence on the consolidation of material. The first three elements of process validation,
process mapping, risk assessment, and validation planning, are necessary pre-conditions to machine
qualification, however, they are outside the scope of this document.
This document covers issues directly related to the AM equipment and does not cover feedstock
qualification or post processing beyond powder removal.
Physical facility, personnel, process and material issues are only included to the extent necessary to
support machine qualification.
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/ASTM 52900, Additive manufacturing — General principles — Terminology
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/ASTM 52900 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/o bp
— IEC Electropedia: available at http:// www.e lectropedia. org/
3.1
installation qualification
IQ
establishment by objective evidence that all key aspects of the process equipment and ancillary system
installation adhere to the manufacturer’s approved specification and that the recommendations of the
supplier of the equipment are suitably considered
3.2
operational qualification
OQ
establishment by objective evidence process control limits and action levels which result in product
that meets all predetermined requirements
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3.3
performance qualification
PQ
establishment by objective evidence that the process, under anticipated conditions, consistently
produces a product which meets all predetermined requirements
3.4
calibration
verification of an instrument’s accuracy against a standard
3.5
verification
confirmation by examination and provision of objective evidence that the specified requirements have
been fulfilled
Note 1 to entry: Verification may include end product testing.
3.6
process validation
establishment by objective evidence that a process consistently produces result of product meeting its
predetermined requirements
3.7
system acceptance test
series of documented procedures and tests agreed between equipment supplier and equipment
purchaser with results meeting predetermined requirements
Note 1 to entry: Satisfactory completion typically constitutes a procurement milestone and can be tied to
payments.
3.8
build interruption
unplanned stop or delay during the build cycle
3.9
means of compliance
method used to satisfy audit requirement
3.10
factory acceptance test
FAT
system acceptance test (3.7) performed at equipment supplier’s facility
3.11
site acceptance test
SAT
system acceptance test (3.7) performed after installation of machine at customer facility
4 Abbreviated terms
The following abbreviated terms are used in this document.
AM additive manufacturing
FAT factory acceptance test
FAI first article inspection
IQ installation qualification
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NDT non-destructive testing
OQ operational qualification
OEM original equipment manufacturer
PQ performance qualification
SAT site acceptance test
SPC statistical process control
5 General concepts
5.1 General
Assurance of product quality is derived from careful attention to many factors including selection of
parts and materials, product and process design, control of the process, equipment installation and
maintenance, and in-process and end-product testing. By managing these factors, a machine user can
establish confidence that all manufactured units from successive manufacturing lots will be acceptable.
The basic principles of quality assurance have as their goal the production of articles that are fit for
their intended use. These principles can be stated as follows:
— quality, safety, and effectiveness shall be designed and built into the end product;
— acceptable quality of the finished product is dependent upon implementing satisfactory quality
controls throughout the manufacturing process and consideration at the inspection and testing
stage only is not sufficient. Testing and inspection proves the quality of the product;
— each step of the manufacturing process shall be controlled to maximize the probability that the
finished products meet all applicable quality and design specifications.
Process validation is a key element in assuring that these quality assurance goals are met. Note: In
some industries, for example aerospace, this element is referred to as special process qualification.
Routine end-product testing alone often is not sufficient to assure product quality for several reasons:
a) some end-product tests have limited sensitivity;
b) destructive testing would be required in some cases to show that the manufacturing process was
adequate;
c) in some situations end-product testing does not reveal all variations that can occur in the product
that can impact on safety and effectiveness.
Successfully validating a process can reduce the dependence upon intensive in-process and finished
product testing. It should be noted that in most cases, end-product testing plays a major role in assuring
that quality assurance goals are met (i.e. validation and end-product testing are not mutually exclusive).
Critical process variables shall be identified, monitored and documented by the machine user. Analysis
of the data collected from monitoring will be used to establish the variability of process parameters for
individual runs to assure that the process is under control. The machine user will then verify whether
the equipment and process controls are adequate to enable product specifications to be met. These
activities are part of statistical process control (see 6.3 Clause 2 and Annex A).
Finished product and in-process test data can be of value in process validation, particularly in situations
where quality attributes and variabilities can be readily measured. Where finished (or in-process)
testing cannot adequately measure certain attributes, process validation should be derived primarily
from qualification of each system used in production and from consideration of the interaction of the
various systems.
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5.2 Preliminary considerations
The machine user should evaluate all factors that affect product quality when designing and
undertaking a process validation study. These factors can vary considerably among different products
and manufacturing technologies and could include, for example, component specifications, air and
water handling systems, environmental controls, equipment functions, powder storage and handling
systems, shielding gas storage and delivery systems, and process control operations. No single approach
to process validation will be appropriate and complete in all cases; however, the following quality
activities should be undertaken in most situations:
a) the product's end use is a determining factor in the development of product (and component)
characteristics and specifications;
b) all pertinent aspects of the product that impact safety and effectiveness should be considered
(including performance, reliability and stability);
c) acceptable ranges or limits should be established for each characteristic to set up allowable
variations in critical process variables;
d) ranges should be expressed in readily measurable terms.
Once a specification is demonstrated as acceptable, it is important that any changes to the specification
be made in accordance with documented change control procedures.
6 Elements of process validation
6.1 General
Validation shall be considered when a new product is introduced, when there is a change in the product,
or when there is a change in the manufacturing process that can affect the product's characteristics.
The following are considered as key elements:
a) process mapping;
b) risk assessment;
c) validation planning – identify processes that need validation;
d) installation qualification;
e) operational qualification;
f) performance qualification.
While the first three elements listed (process mapping, risk assessment, and validation planning) are
key elements of process validation; they are outside the scope of this guideline. When planning for
validation it is important to take in consideration different sizes of product, structure, and volume of
production.
It is essential that the validation programme is documented and that the documentation is properly
maintained. Approval and release of the process for use in routine manufacturing should be based upon
a review of all the validation documentation, including data from the equipment qualification, process
performance qualification, and product testing to ensure compatibility with the process.
For routine production, it is important to adequately record process details (e.g. time, temperature,
equipment used). Documentation requirements should be part of the machine user’s quality system.
Maintenance logs and build logs can be useful in performing failure investigations concerning a
specific manufacturing lot. Process development data (along with specific test data) can also determine
expected variance in product or equipment characteristics.
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6.2 Installation qualification (IQ)
6.2.1 General
Installation qualification studies establish confidence that the process equipment and ancillary systems
are capable of consistently operating within established limits and tolerances. After process equipment
is designed or selected, it should be evaluated and tested to verify that it is capable of operating
satisfactorily within the operating limits required by the process. This phase of validation includes
examination of equipment design, determination of calibration, maintenance, and adjustment of critical
equipment features that could affect the process and product. Information obtained from these studies
should be used to establish written procedures covering equipment calibration, maintenance, set-up,
monitoring, and control.
In assessing the suitability of a given piece of equipment, it is usually insufficient to rely solely upon the
representations of the equipment supplier, or upon experience in producing some other product. Sound
theoretical and practical engineering principles and considerations are a first step in the assessment.
It is important that equipment qualification simulate actual production conditions, including those that
are at extreme limits of the process. These conditions shall be defined and rationalized by the user of
the equipment based on the OEM’s machine specifications.
Tests and challenges should be repeated as necessary to assure reliable and meaningful results. All
acceptance criteria need to be met during the test or challenge. If any test or challenge shows that the
equipment does not perform within its specifications, an evaluation should be performed to identify
the cause of the failure. Corrections should be made, and additional test runs performed as needed, to
verify that the equipment performs within specifications. The observed variability of the equipment
between and within runs can be used as a basis for determining the total number of trials selected for
the subsequent performance qualification studies of the process.
6.2.2 Specific considerations for installation qualification
a) Equipment design validation and installation:
1) system acceptance testing should be completed and documented during the installation.
The equipment supplier should perform a system acceptance test regardless of whether the
equipment purchaser requires one:
i) system acceptance testing can include the following:
aa) factory acceptance testing (FAT) performed at the equipment supplier prior to
delivery:
— equipment purchaser and equipment supplier should agree in advance on FAT
acceptance criteria and data to be collected. Results of the FAT should be documented
and delivered to the machine user;
— if measurements are being taken, verify calibration status for measurement devices;
— as an example of areas that might be included, see ISO/ASTM 52941;
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bb) site acceptance testing (SAT) performed following the installation activity at
the equipment user site by the equipment supplier (equipment user involved or
witnessing);
ii) examine equipment design and locate supplied documentation, prints, drawings, and
manuals, including where applicable, software documentation:
aa) establish a filing location to safely retain the supplied equipment documents;
iii) the user should generate or locate a spare parts list with guidance from the OEM;
2) installation conditions:
i) there should be a documented procedure for humidity, temperature and other environmental
conditions (vibration, etc.) for the machine location:
aa) environmental conditions and limits shall be specified by the OEM. Verification that
the facility is in compliance and able to adequately control and monitor environmental
conditions is the responsibility of the user:
— procedures and equipment used to monitor the environmental conditions should be
recorded in the IQ report.
— humidity and temperature shall each be measured in at least one representative
location in the vicinity of the equipment. Instruments shall be calibrated periodically
and the calibration records maintained. Note that for systems where powder shall be
exposed to atmosphere during loading or other handling operations, direct effects on
the powder shall also be considered in setting appropriate limits.
— consider allowable limits on other environmental factors such as vibration;
bb) The surrounding work area should fulfil the requirements specified by the OEM and have
sufficient space to perform the processing and associated activities. Location of equipment
should allow for adequate servicing, ventilation, and safety;
cc) OEMs are responsible for providing facilities guides detailing siting requirements prior to
system installation. User is responsible for meeting facility requirements prior to install of
the equipment;
ii) verify that all utilities are conforming:
aa) determine machine requirements based on information that shall be provided by OEM. The
OEM should be consulted for specific system facility requirements prior to installation.
Utilities can include:
— electricity;
— inert gas;
— compressed air;
— chill water;
— exhaust;
— electrostatic bonding or grounding;
— computer network or other communications connections, if applicable;
b) procedure control:
1) OEM shall provide adequate instruction and documentation on how to properly operate
equipment;
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2) as part of the installation qualification the user should establish proper documented control
of the AM equipment and supporting equipment. Such written instruction can include the
following and should be documented within the installation qualification:
i) Build preparation and powder bed manufacture- including:
— machine start-up;
— establishment of process conditions;
— build set-up;
— cleaning of build platform;
— build platform removal;
— build monitoring;
— post build (e.g. removal of loose powder and build platform);
— build platform traceability;
ii) powder storage, handling, traceability (labelling conventions) and waste disposal;
iii) configuration management;
iv) nonconforming material in case of build interruption or build anomaly;
v) file preparation;
vi) control of digital workflow;
c) software and data control:
1)
1) data management should be a documented process according to ISO/ASTM 52920 ;
2) software used for file preparation and operation of the AM equipment should be characterized
and (configuration) controlled;
3) the user should have a documented procedure for configuration management to ensure that
software versions are controlled and recorded on manufacturing build records;
4) software updates should be controlled following a written procedure;
5) based on industry and application further software validation can be required;
d) calibration of machines and subsystems:
1) equipment calibration:
i) establish calibration, adjustment, performance tests and expected repair procedures
(including schedules):
aa) calibration schedules of instruments and measurement devices used either within the
process or as part of the calibration of the system shall be determined. Procedures
should be in place to ensure compliance to calibration system. Refer to ISO/IEC 17025
or internal calibration standard;
bb) specific recalibration intervals depend on a number of factors including:
— accuracy requirements set by customers;
— requirements set by contract or regulation;
1)  Under preparation. Stage at the time of publication ISO/ASTM/CD 52920:2021.
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— inherent stability of the specific instrument or device;
— environmental factors that can affect the stability;
e) preventive maintenance
1) OEM should provide guidance to frequency, content and tools needed for preventative
maintenance. Procedures should be in place to establish a preventative maintenance
programme. The procedure should ensure that records of maintenance are dul
...