Standardization of welding, by all processes, as well as allied processes; these standards include terminology, definitions and the symbolic representation of welds on drawings, apparatus and equipment for welding, raw materials (gas, parent and filler metals) welding processes and rules, methods of test and control, calculations and design of welded assemblies, welders' qualifications, as well as safety and health.


  • electrical safety matters related to welding which are the responsibility of IEC / TC 26.

Quick links


Published ISO standards *

of which 1 under the direct responsibility of ISO/TC 44


ISO standards under development *

of which 1 under the direct responsibility of ISO/TC 44

Participating members
Observing members

* number includes updates

Reference Title Type
ISO/TC 44/SC 3 Welding consumables Subcommittee
ISO/TC 44/SC 5 Testing and inspection of welds Subcommittee
ISO/TC 44/SC 6 Resistance welding and allied mechanical joining Subcommittee
ISO/TC 44/SC 7 Representation and terms Subcommittee
ISO/TC 44/SC 8 Equipment for gas welding, cutting and allied processes Subcommittee
ISO/TC 44/SC 9 Health and safety Subcommittee
ISO/TC 44/SC 10 Quality management in the field of welding Subcommittee
ISO/TC 44/SC 11 Qualification requirements for welding and allied processes personnel Subcommittee
ISO/TC 44/SC 12 Soldering materials Subcommittee
ISO/TC 44/SC 13 Brazing materials and processes Subcommittee
ISO/TC 44/SC 14 Welding and brazing in aerospace Subcommittee
ISO/TC 44/SC 15 Underwater welding Subcommittee
ISO/TC 44/JAG   IIW – ISO/TC 44 – CEN/TC 121 Coordination Committee Working group
ISO/TC 44/TF 1   Review of ISO/TC 261 standards dealing with welding Working group
ISO/TC 44/WG 5   Welding simulation Working group
Liaison Committees to ISO/TC 44

The committees below can access the documents of ISO/TC 44:

Reference Title ISO/IEC
IEC/TC 26 Electric welding IEC
ISO/TC 5 Ferrous metal pipes and metallic fittings ISO
ISO/TC 11 Boilers and pressure vessels ISO
ISO/TC 26 Copper and copper alloys ISO
ISO/TC 58 Gas cylinders ISO
ISO/TC 79 Light metals and their alloys ISO
ISO/TC 94 Personal safety -- Personal protective equipment ISO
ISO/TC 107 Metallic and other inorganic coatings ISO
ISO/TC 135 Non-destructive testing ISO
ISO/TC 153 Valves ISO
ISO/TC 164 Mechanical testing of metals ISO
ISO/TC 269 Railway applications ISO


Liaison Committees from ISO/TC 44

ISO/TC 44 can access the documents of the committees below:

Reference Title ISO/IEC
IEC/TC 26 Electric welding IEC
IIW International Institute of Welding ISO
ISO/TC 17/SC 11 Steel castings ISO
ISO/TC 61 Plastics ISO
ISO/TC 61/SC 11 Products ISO
ISO/TC 67 Oil and gas industries including lower carbon energy ISO
ISO/TC 107 Metallic and other inorganic coatings ISO
ISO/TC 135 Non-destructive testing ISO
ISO/TC 167 Steel and aluminium structures ISO
ISO/TC 261 Additive manufacturing ISO
ISO/TC 269/SC 1 Infrastructure ISO


Organizations in liaison (Category A and B)
Acronym Title Category
IIW International Institute of Welding A
SBS - Small Business Standards Small Business Standards A
EC - European Commission European Commission B
OTIF Intergovernmental Organization for International Carriage by Rail B
UNESCAP United Nations Economic and Social Commission for Asia and the Pacific B
WCO World Customs Organization B

Date Month Location TC/SC Note
3 September 2024 Virtual () ISO/TC 44/SC 14  
7 October 2024 Virtual () ISO/TC 44/SC 3  
11 October 2024 Virtual () ISO/TC 44/SC 3  
5-8 November 2024 Saint-Denis (France) ISO/TC 44  
6 November 2024 Saint-Denis (France) ISO/TC 44/SC 11 **
18 November 2024 Virtual () ISO/TC 44/SC 15  
22 January 2025 Virtual () ISO/TC 44/SC 12 **

* Information definite but meeting not yet formally convened
** Provisional

ISO/TC 44 - Secretariat

AFNOR [France]

Association française de normalisation
11 rue Francis de Pressensé
F-93571 La Plaine Saint-Denis Cedex

Tel: +33 1 41 62 80 00
Fax: +33 1 49 17 90 00