NA 092

DIN Standards Committee Welding and allied processes

About NAS

The DIN Standards Committee for Welding and allied processes (NAS) is responsible for the national standardization and represents the German interests on the European level (CEN) within CEN/TC 121 "Welding" and CEN/TC 240 "Thermal spraying and thermally sprayed coatings" as well as on the international level (ISO) within ISO/TC 44 "Welding and allied processes".

The NAS covers the following fields:

  • welding,
  • thermal cutting,
  • thermal spraying,
  • brazing and soldering,
  • pasting
  • and mechanical joining.

The NAS also prepares standards on the topics

  • principles of communication (e.g. terms and definitions),
  • testing and assessment of personnel,
  • procedure tests,
  • consumables for welding, brazing, soldering and thermal spraying,
  • quality requirements,
  • destructive and non-destructive tests,
  • health and safety requirements
  • as well as equipment for gas welding, resistance welding, beam welding, thermal cutting and thermal spraying.

How is NAS composed?


DIN e. V.
Roman Grahle

Am DIN-Platz
Burggrafenstraße 6
10787 Berlin

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New projects
Document number Begin Title
DIN EN 12814-5 rev 2024-02-02 Testing of welded joints of thermoplastics semi-finished products - Part 5: Macroscopic examination More  Comment 
DIN EN 12814-1 rev 2024-02-01 Testing of welded joints of thermoplastics semi-finished products - Part 1: Bend test More  Comment 
ISO/DIS 5175-3 2023-12-05 Gas welding equipment - Safety devices - Part 3: Decomposition blockers for low pressure acetylene More  Comment 

All projects  

Current Draft Standards
Document number Edition Title
DIN EN ISO 21368/A100 2024-04 Adhesives - Guidelines for the fabrication of adhesively bonded structures and reporting procedures suitable for the risk evaluation of such structures; Amendment A100: Amendments to E DIN EN ISO 21368:2023-05 More  Read draft and comment
DIN EN ISO 14344 2024-03 Welding consumables - Procurement of filler materials and fluxes (ISO/DIS 14344:2024); German and English version prEN ISO 14344:2024 More  Read draft and comment
DIN EN ISO 636 2024-03 Welding consumables - Rods, wires and deposits for tungsten inert gas welding of non-alloy and fine-grain steels - Classification (ISO/DIS 636:2024); German and English version prEN ISO 636:2024 More  Read draft and comment

All draft standards  

New publications
Document number Edition Procedure Title
DIN CEN/TS 13259 2024-04 VN Gas welding equipment - Industrial manual and machine blowpipes for flame heating, flame brazing and allied processes; German version CEN/TS 13259:2023 More  Order from Beuth Verlag
DIN EN ISO 9455-17 2024-04 Standard Soft soldering fluxes - Test methods - Part 17: Surface insulation resistance comb test and electrochemical migration test of flux residues (ISO 9455-17:2024); German version EN ISO 9455-17:2024 More  Order from Beuth Verlag
DIN EN ISO 15611 2024-04 Standard Specification and qualification of welding procedures for metallic materials - Qualification based on previous welding experience (ISO 15611:2024); German version EN ISO 15611:2024 More  Order from Beuth Verlag

All publications