3D Printing & Additive Manufacturing Standards (ISO/ASTM)

Reference for ISO/ASTM standards + a timeline of AM patents

Last updated: 2026

Additive manufacturing is governed by the ISO/ASTM 52900 family of standards. Key ones: 52900 (terminology), 52910 / 52911 (design for AM), 52904 (PBF for critical applications), 52915 (AMF format), ISO 17296-2 (the seven process categories). Full reference and a timeline of foundational patents below.

ISO/ASTM standards for additive manufacturing

StandardTitleCategoryTechnologies
ISO/ASTM 52900Additive manufacturing: Fundamentals and terminology
Defines the core principles, concepts and terminology applicable to all AM processes. The foundational document for the industry.
TerminologyAll AM
ISO/ASTM 52901General principles: Requirements for purchased AM parts
Requirements for ordering additively manufactured parts: material, process and quality specifications.
General principlesAll AM
ISO/ASTM 52902Test artifacts: Geometric capability
Test artifacts and methods to assess the geometric capability of AM systems (accuracy, resolution).
TestingAll AM
ISO/ASTM 52903Material-extrusion-based additive manufacturing
Standard for material-extrusion AM (incl. large-format Contour Crafting, BAAM) for construction/industrial use.
ExtrusionFDM, Pellet, Contour Crafting
ISO/ASTM 52904PBF process: Practice for critical applications
Practice for metal powder-bed fusion (PBF) for critical applications: reliability and consistency.
Process controlSLS, DMLS, SLM, EBM
ISO/ASTM 52910Design: Requirements, guidelines and recommendations (DfAM)
Guidelines for designing parts for additive manufacturing (DfAM): geometry and support optimization.
Design (DfAM)All AM
ISO/ASTM 52911-1Design: PBF of metals (laser)
Design guidance for metal parts via laser powder-bed fusion (L-PBF): min. thickness, supports, thermal distortion.
Design (DfAM)DMLS, SLM
ISO/ASTM 52911-2Design: PBF of metals (electron beam)
Design guidance for metal parts via electron-beam powder-bed fusion (EB-PBF).
Design (DfAM)EBM
ISO/ASTM 52915AMF file format specification
Defines the XML-based AMF file format for AM data exchange: supports color, materials and curved surfaces.
File formatsAll AM
ISO/ASTM 52941Acceptance tests for PBF-LB machines (aerospace)
Acceptance tests for laser metal powder-bed fusion (PBF-LB) machines for aerospace applications.
Applications (Aerospace)DMLS, SLM
ISO/ASTM 52950General principles: Overview of data processing
Describes the AM data workflow: from CAD model to print-ready file, incl. mesh validation and repair.
Data processingAll AM
ASTM F3049Guide for characterizing metal powders for AM
Standard guide for characterizing the properties of metal powders used in additive manufacturing.
MaterialsDMLS, SLM, EBM, MBJ
ASTM F3604Validation of AM process for medical devices (L-PBF)
Practice for validating the production process for medical devices made by L-PBF.
Applications (Medical)DMLS, SLM
ISO 17296-2General principles: Process categories and feedstock
Describes the seven main AM process categories and corresponding materials.
General principlesAll AM
ISO 17296-3General principles: Characteristics and test methods
Defines the main characteristics of AM parts and the test methods for them (mechanical, thermal, surface).
TestingAll AM

Additive manufacturing patent timeline

YearTechnologyInventorPatentAssignee
1986SLACharles HullUS 4,575,3303D Systems, Inc.
1992FDMS. Scott CrumpUS 5,121,329Stratasys, Inc.
1993Binder JettingEmanuel Sachs et al.US 5,204,055MIT
1997DLPTexas InstrumentsUS 5,597,520Texas Instruments
2000DMD (DED)J. Mazumder et al.US 6,122,564Univ. of Michigan
2000LENS (DED)G. K. Lewis et al.US 6,060,685AOptomec
2002UAM (LOM)Dawn WhiteUS 6,463,349B2Solidica, Inc.
2006BioprintingThomas Boland et al.US 7,051,654B2Clemson University
2007EBAM (DED)Sciaky, Inc.US 7,168,935Sciaky, Inc.
2011Contour CraftingBehrokh KhoshnevisUS 7,874,825B2Univ. of Southern California
2015CLIPJoseph DeSimone et al.US 9,211,678B2Carbon, Inc.
2016MJFHP Inc.US 9,523,934HP Inc.

Frequently asked questions

Which standard defines additive manufacturing terminology?

ISO/ASTM 52900: "Fundamentals and terminology". It is the foundational document defining the concepts and terms for all AM processes.

Which standard covers design for additive manufacturing (DfAM)?

ISO/ASTM 52910 gives the general DfAM guidelines. For metals: ISO/ASTM 52911-1 (laser PBF) and 52911-2 (electron-beam PBF), covering min. thickness, supports and thermal distortion.

Who invented FDM and when?

S. Scott Crump in 1992 (patent US 5,121,329, Stratasys). FDM is the most widespread 3D printing technology today.

Who invented stereolithography (SLA)?

Charles Hull in 1986 (patent US 4,575,330, 3D Systems): the first patented 3D printing technology.

What is the standard file format for 3D printing?

ISO/ASTM 52915 defines the AMF (Additive Manufacturing File) format. In practice STL is the de-facto standard, with 3MF the modern alternative supporting color and materials.

How many main AM process categories are there?

Seven, per ISO 17296-2: material extrusion, vat photopolymerization, powder bed fusion, binder jetting, material jetting, directed energy deposition and sheet lamination.

See the material comparison →