EN ISO/ASTM 52959:2026

Additive Manufacturing of metals - Test artefacts - Compression validation specimens for lattice designs (ISO/ASTM 52959:2026)

This document specifies requirements and provides guidance for the preparation for axial force compression testing of additively manufactured (AM) metallic lattice specimens for validation purposes.

Additive Fertigung von Metallen - Testartefakte - Druckprobekörper für Gitterkonstruktionen (ISO/ASTM 52959:2026)

Dieses Dokument legt Anforderungen fest und enthält Leitlinien für die Vorbereitung der Druckprüfung mit Axialkraft von additiv gefertigten Metallgitterprobekörpern zu Validierungszwecken.

Fabrication additive de métaux - Pièces types d’essai - Éprouvettes de validation de compression pour les conceptions de treillis (ISO/ASTM 52959:2026)

Le présent document spécifie les exigences et fournit des conseils pour la préparation des essais de compression de force axiale d'éprouvette de treillis métalliques fabriqués de manière additive (FA) à des fins de validation.

Dodajalna izdelava kovinskih izdelkov - Preskusna telesa - Tlačni preskušanci za mrežaste konstrukcije (ISO/ASTM 52959:2026)

Ta dokument določa zahteve in zagotavlja smernice za pripravo na preskušanje tlačne obremenitve z aksialno silo za aditivno izdelane (AM) kovinske mrežaste vzorce za namene validacije.

General Information

• Status: Published
• Publication Date: 24-Feb-2026
• ICS: 25.030 - Additive manufacturing
• Technical Committee: CEN/TC 438 - Additive Manufacturing
• Drafting Committee: CEN/TC 438 - Additive Manufacturing
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 25-Feb-2026
• Due Date: 26-Dec-2025
• Completion Date: 25-Feb-2026
• Ref Project: SIST EN ISO/ASTM 52959:2026 - Additive Manufacturing of metals - Test artefacts - Compression validation specimens for lattice designs (ISO/ASTM 52959:2026)

Relations

• Refers: ISO/ASTM 52900:2021 - Additive manufacturing — General principles — Fundamentals and vocabulary
• Effective Date: 01-Apr-2026
• Refers: ISO/ASTM 52931:2023 - Additive manufacturing of metals — Environment, health and safety — General principles for use of metallic materials
• Effective Date: 01-Apr-2026
• Consolidated By: ISO/ASTM 52959:2026 - Additive manufacturing of metals — Test artefacts — Compression validation specimens for lattice designs
• Effective Date: 12-Feb-2026

Overview

EN ISO/ASTM 52959:2026 is an international standard developed by CEN, ISO, and ASTM, focused on additive manufacturing (AM) of metals, specifically for testing metallic lattice structures. This standard provides requirements and guidance for the preparation of compression validation specimens. These artefacts are essential for validating the compression performance of additively manufactured metallic lattices, ensuring consistent, accurate quality assurance in 3D-printed metal components with lattice designs.

Additive manufacturing enables the creation of complex lattice structures within metal parts. However, the unique geometries and process variables necessitate standardized specimen designs and testing protocols for reliable validation. EN ISO/ASTM 52959:2026 addresses this need by establishing a unified framework for the preparation, identification, and testing of AM metallic lattice compression specimens.

Key Topics

• Scope: Covers requirements for the preparation and testing of AM metallic lattice validation specimens subjected to axial compression.
• Specimen design: Specifies geometries (e.g., cuboid, cylinder), dimensions, and considerations such as build orientation, endplate use, and cell numbers for both ductile and brittle metallic lattices.
• Verification process:
  • Cleaning and visual inspection criteria
  • Measurement procedures for specimen dimensions and lattice features
  • Use of standardized test methods (ASTM E9, ISO 13314) adapted for AM lattice structures
  • Reporting of process parameters and deviations
• Safety and hazards: References ISO/ASTM 52931 for safe handling of metallic powders and highlights the need for appropriate personal protective equipment during compression testing.
• Identification and traceability: Requires comprehensive documentation of material, design, manufacturing process, and relevant build parameters for each specimen.

Applications

Implementing EN ISO/ASTM 52959:2026 offers significant benefits across industries utilizing metal additive manufacturing:

• Quality control: Manufacturers can consistently assess and validate the compressive mechanical strength of lattice structures, ensuring products meet rigorous performance standards.
• Design optimization: By providing guidance on specimen geometry, cell count, and orientation, the standard enables engineers to improve the structural efficiency of 3D-printed lattice components.
• Process validation: Standardized artefacts make it possible to compare the capabilities of different AM systems and process parameters, facilitating optimization and troubleshooting.
• Regulatory compliance: Adoption of recognized standards like EN ISO/ASTM 52959:2026 strengthens traceability and documentation, supporting conformity with national and international regulations.
• R&D and benchmarking: The use of standardized test methods allows for effective benchmarking of new materials, lattice designs, and AM techniques.

Common uses include validation of load-bearing parts in aerospace, medical implants, automotive, and energy sectors, where lattice structures can combine lightness with mechanical strength.

Related Standards

EN ISO/ASTM 52959:2026 is part of a broader family of standards for additive manufacturing and mechanical testing of metals:

• ISO/ASTM 52900: General principles, fundamentals, and vocabulary for additive manufacturing
• ISO/ASTM 52931: Environment, health, and safety for metallic materials in AM
• ISO 13314: Mechanical testing - Compression test for porous and cellular metals
• ASTM E9: Compression testing of metallic materials
• ISO/ASTM 52927: Main characteristics and test methods in additive manufacturing
• ASTM F1854-25: Stereological evaluation of porous coatings (useful for measuring lattice geometries)

Using EN ISO/ASTM 52959:2026 in conjunction with these related standards enables comprehensive, standardized validation and documentation of metallic lattice structures in additive manufacturing.

Keywords: EN ISO/ASTM 52959:2026, additive manufacturing, metal 3D printing, compression validation, lattice specimen, test artefact, quality control, metallic lattices, standardization, CEN, ISO, ASTM.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2026
Dodajalna izdelava kovinskih izdelkov - Preskusna telesa - Tlačni preskušanci za
mrežaste konstrukcije (ISO/ASTM 52959:2026)
Additive Manufacturing of metals - Test artefacts - Compression validation specimens for
lattice designs (ISO/ASTM 52959:2026)
Additive Fertigung von Metallen - Testartefakte - Kompressionsvalidierungscoupons für
Gitterkonstruktionen (ISO/ASTM 52959:2026)
Fabrication additive de métaux - Pièces types d’essai - Éprouvettes de validation de
compression pour les conceptions de treillis (ISO/ASTM 52959:2026)
Ta slovenski standard je istoveten z: EN ISO/ASTM 52959:2026
ICS:
25.030 3D-tiskanje Additive manufacturing
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO/ASTM 52959
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2026
EUROPÄISCHE NORM
ICS 25.030
English Version
Additive Manufacturing of metals - Test artefacts -
Compression validation specimens for lattice designs
(ISO/ASTM 52959:2026)
Fabrication additive de métaux - Pièces types d'essai - Additive Fertigung von Metallen - Testartefakte -
Éprouvettes de validation de compression pour les Kompressionsvalidierungscoupons für
conceptions de treillis (ISO/ASTM 52959:2026) Gitterkonstruktionen (ISO/ASTM 52959:2026)
This European Standard was approved by CEN on 22 February 2026.

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, Türkiye 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
© 2026 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO/ASTM 52959:2026 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO/ASTM 52959:2026) 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.
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 August 2026, and conflicting national standards shall
be withdrawn at the latest by August 2026.
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 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, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO/ASTM 52959:2026 has been approved by CEN as EN ISO/ASTM 52959:2026 without
any modification.
International
Standard
ISO/ASTM 52959
First edition
Additive manufacturing of metals —
2026-02
Test artefacts — Compression
validation specimens for lattice
designs
Fabrication additive de métaux — Pièces types d’essai —
Éprouvettes de validation de compression pour les conceptions de
treillis
Reference number
ISO/ASTM 52959:2026(en) © ISO/ASTM International 2026

ISO/ASTM 52959:2026(en)
© ISO/ASTM International 2026
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: [phone] Phone: [phone]
Fax: [phone]
Email: [e-mail] Email: [e-mail]
Website: www.iso.org Website: www.astm.org
Published in Switzerland
© ISO/ASTM International 2026 – All rights reserved
ii
ISO/ASTM 52959:2026(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Values . 1
5 Significance and use . 1
5.1 Significance . . .1
5.2 Use .2
6 Hazards . 2
7 Compression specimen design and manufacture . 2
8 Procedure . 3
8.1 Cleaning .3
8.2 Visual inspection .3
8.3 Specimen measurement .3
9 Specimen identification . 4
Bibliography . 5

© ISO/ASTM International 2026 – All rights reserved
iii
ISO/ASTM 52959:2026(en)
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
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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, 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 use
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