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DIN Standards Committee Optics and Precision Mechanics

About NAFuO

The DIN Standards Committee for Precision Mechanics and Optics (NAFuO) is responsible for standardization in

  • precision mechanics - including in healthcare technology,
  • microsystems technology,
  • optics and photonics
  • as well as jewellery and horology.  

The NAFuO also covers the biological evaluation and clinical investigation of medical devices, and tissue engineering. In the field of personal protective equipment, it is responsible for the standardization of personal eye protection, respiratory protective devices and diving equipment.

Most of the documents developed by the NAFuO are "harmonized" European Standards which give detail to the essential safety requirements laid down in European Directives. These harmonized standards are essential for placing products to the European market.

The Committee also aims at making as many standards as possible available at international level to reflect the global nature of these markets and to promote the global harmonization of approval procedures, particularly in the medical devices sector.

The NAFuO monitors all current developments in its areas of activity and is very open to new technologies and trends.

Feel free to contact us any time if you see the need to standardize a particular subject.

How is NAFuO composed?

Contact

DIN e. V.
Dr.
Bärbel Wernicke

Am DIN-Platz
Burggrafenstraße 6
10787 Berlin

Send message to contact  

New projects
Document number Begin Title Comment
ISO/AWI 12819 2026-02-09 Methods of evaluation of the battery life of a battery-powered watch More  Comment 
ISO/AWI TS 26420 2026-01-27 Biological evaluation of medical devices - Guidance on the impact of bioaccumulation and intermittent contact in the application of ISO 10993-1 More  Comment 
DIN EN ISO 16321-2 rev 2026-01-26 Eye and face protection for occupational use - Part 2: Additional requirements for protectors used during welding and related techniques More  Comment 

All projects  

Current Draft Standards
Document number Edition Title
DIN ISO 6425 2026-04 Horology - Diver's watches (ISO 6425:2018); Text in German and English More 
DIN EN 149 2026-03 Respiratory protective devices - Filtering half masks to protect against particles - Requirements, testing and marking; German and English version prEN 149:2026 More 
DIN EN 144-4 2026-03 Respiratory protective devices - Gas cylinder valves - Part 4: Excess flow devices; German and English version prEN 144-4:2026 More  Read draft and comment

All draft standards  

New publications
Document number Edition Procedure Title Order from DIN Media
DIN EN ISO 10993-23 2026-03 Standard Biological evaluation of medical devices - Part 23: Tests for irritation (ISO 10993-23:2021 + Amd 1:2025); German version EN ISO 10993-23:2021 + A1:2025 More  Order from DIN Media
DIN EN ISO 18527-2 2026-03 Standard Eye and face protection for sports use - Part 2: Requirements for eye protectors for squash and eye protectors for racquetball and squash 57 (ISO 18527-2:2021); German version EN ISO 18527-2:2021 More  Order from DIN Media
DIN EN ISO 12609-1 2026-03 Standard Eye and face protection against intense light sources used on humans and animals for cosmetic and medical applications - Part 1: Specification for products (ISO 12609-1:2021); German version EN ISO 12609-1:2025 More  Order from DIN Media

All publications  

Your way to NAFuO

The Offices of DIN Pforzheim are located at the borders of the City center.

ADDRESS:
DIN-Normenausschuss
Feinmechanik und Optik
Außenstelle Pforzheim
Alexander-Wellendorff-Str. 2
75172 Pforzheim
Tel.: 07231 9188-0
eMail: nafuo@din.de 


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Main station (Hauptbahnhof), approx. 15 minutes walking distance to Alexander-Wellendorff-Straße. Leave the station platform and take Exit West towards city (Schmuckwelten). In the pedestrian underpass please keep left and follow the Bahnhofstraße continuing into the Leopoldstraße up to the bridge. After the bridge turn right and continue along the Jörg-Ratgeb-Straße, cross the street on to the Turnplatz. The DIN office is located to the right of the Wellendorff company. Taxi approx. 7 minutes, ca. 8 €.

Alternatively take the bus line 2 to Sonnenhof or line 8 to Rodrücken, approx. 10 minutes. Get off the bus at ”Turnplatz“ and cross the parking.

Coming from the autobahn A8 please take junction Pforzheim Nord (exit No 44). Continue along B294 (follow Heinrich-Wieland-Allee, Hohenzollernstraße, Christophallee) heading for the city centre. After passing the main railway station, turn off the B294 onto the Luisenstraße towards Brötzingen (i. e. at the petrol station ”Jet“ keep left). At the next set of lights turn left and follow the Berliner Straße up to the bridge. After the bridge turn right onto the Turnplatz. It is possible (except on Wednesdays) to park directly on the Turnplatz (parking fee).

The DIN office is located to the right of the Wellendorff company. Please note, if you use a navigation system, Turnplatz should be entered as destination, not Alexander-Wellendorff-Straße 2.

Free parking is available on the Messplatz. Please follow the corresponding inner city road signs.

From there, it is a 10 minute walk along the Enz (downstream direction) to the DIN Office.

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