Safety of machinery - Laser processing machines - Part 2: Safety requirements for hand-held or hand-operated laser processing machines (ISO/DIS 11553-2:2025)

Sicherheit von Maschinen - Laserbearbeitungsmaschinen - Teil 2: Sicherheitsanforderungen an handgeführte Laserbearbeitungsgeräte (ISO 11553-2:20xx)

Sécurité des machines - Machines à laser - Partie 2: Exigences de sécurité pour machines de traitement laser portatives ou à commande manuelle (ISO/DIS 11553-2:2025)

Varnost strojev - Laserski obdelovalni stroji - 2. del: Varnostne zahteve za ročne ali ročno upravljane laserske obdelovalne naprave (ISO/DIS 11553-2:2025)

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Not Published
Publication Date
10-Aug-2026
Current Stage
4020 - Submission to enquiry - Enquiry
Start Date
16-Jan-2025
Due Date
16-Jan-2025
Completion Date
16-Jan-2025

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SLOVENSKI STANDARD
01-marec-2025
Nadomešča:
SIST EN ISO 11553-2:2009
Varnost strojev - Laserski obdelovalni stroji - 2. del: Varnostne zahteve za ročne
ali ročno upravljane laserske obdelovalne naprave (ISO/DIS 11553-2:2025)
Safety of machinery - Laser processing machines - Part 2: Safety requirements for hand-
held or hand-operated laser processing machines (ISO/DIS 11553-2:2025)
Sicherheit von Maschinen - Laserbearbeitungsmaschinen - Teil 2:
Sicherheitsanforderungen an handgeführte Laserbearbeitungsgeräte (ISO 11553-2:20xx)
Sécurité des machines - Machines à laser - Partie 2: Exigences de sécurité pour
machines de traitement laser portatives ou à commande manuelle (ISO/DIS 11553-
2:2025)
Ta slovenski standard je istoveten z: prEN ISO 11553-2
ICS:
13.110 Varnost strojev Safety of machinery
31.260 Optoelektronika, laserska Optoelectronics. Laser
oprema equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
International
Standard
ISO/DIS 11553-2
ISO/TC 172/SC 9
Safety of machinery — Laser
Secretariat: DIN
processing machines —
Voting begins on:
Part 2: 2025-01-14
Safety requirements for hand-held
Voting terminates on:
2025-04-08
or hand-operated laser processing
machines
Sécurité des machines — Machines à laser —
Partie 2: Exigences de sécurité pour machines de traitement laser
portatives ou à commande manuelle
ICS: 31.260; 13.110
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
Member bodies are requested to consult relevant national interests in IEC/TC AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
76 before casting their ballot to the e-Balloting application.
PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
This document is circulated as received from the committee secretariat.
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PROVIDE SUPPORTING DOCUMENTATION.
Reference number
ISO/DIS 11553-2:2025(en)
DRAFT
ISO/DIS 11553-2:2025(en)
International
Standard
ISO/DIS 11553-2
ISO/TC 172/SC 9
Safety of machinery — Laser
Secretariat: DIN
processing machines —
Voting begins on:
Part 2:
Safety requirements for hand-held
Voting terminates on:
or hand-operated laser processing
machines
Sécurité des machines — Machines à laser —
Partie 2: Exigences de sécurité pour machines de traitement laser
portatives ou à commande manuelle
ICS: 31.260; 13.110
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
Member bodies are requested to consult relevant national interests in IEC/TC AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
76 before casting their ballot to the e-Balloting application.
PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
This document is circulated as received from the committee secretariat.
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2025
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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POTENTIAL TO BECOME STANDARDS TO
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WHICH REFERENCE MAY BE MADE IN
or ISO’s member body in the country of the requester.
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Website: www.iso.org
Published in Switzerland Reference number
ISO/DIS 11553-2:2025(en)
ii
ISO/DIS 11553-2:2025(en)
Contents Page
Foreword .vi
Introduction .vii
1 Scope . 1
2 Normative references . 2
3 Terms and definitions . 3
4 Risk assessment . 7
4.1 General .7
4.1.1 Types of HLM and special hazards .8
4.1.2 Special hazards with regard to types of HLM .8
4.2 Determination of limits of HLM .9
4.3 Hazards identification .10
4.4 Risk estimation .10
4.5 Risk evaluation .10
4.6 Hazards (significant) .10
4.6.1 Mechanical Hazards .11
4.6.2 Electrical Hazards .11
4.6.3 Thermal Hazards .11
4.6.4 Hazards by incoherent radiation . 12
4.6.5 Hazards by laser radiation . 12
4.6.6 Hazards associated with materials and substances . 15
4.6.7 Hazards by disregarding ergonomic principles .17
4.6.8 Hazards due to malfunction of the control system .18
4.6.9 Hazards due to third parties (persons) . 20
4.6.10 Hazards caused by lack or inadequacy of visual or acoustic warning means . 22
4.6.11 Hazards associated with the environment . 23
5 Safety requirements and risk reduction measures .25
5.1 General . 25
5.2 Requirements related to Mechanical Hazards . 26
5.3 Requirements related to Electrical Hazards . 26
5.4 Requirements related to Thermal Hazards . 26
5.5 Requirements related to incoherent radiation .27
5.6 Requirements related to Hazards by laser radiation .27
5.6.1 General .27
5.6.2 Laser Classification . 29
5.6.3 Design to avoid hazardous laser emission out of HLM or components respectively . 29
5.6.4 Use of a movable and interlocking guard with or without guard locking . 29
5.6.5 Design to avoid laser emission for HLMs connected to an external laser assembly. 30
5.6.6 Design to avoid laser emission by beam delivery system. 30
5.6.7 Design to avoid laser emission by damage of fibre optical cable .31
5.6.8 Design to avoid laser emission by damage or malfunction of fibre connectors .31
5.6.9 Design to avoid laser hazards by misalignment of beam path .31
5.6.10 Design to avoid laser hazards by not properly working active beam guiding and
shaping elements .31
5.6.11 Design to avoid laser emission by not properly designed HLH housing .31
5.6.12 Design to avoid laser hazards by not properly working handing system (HLH)
, where elements of the HLH (e.g., optical elements, nozzles) can be changed to
enable different applications .32
5.6.13 Safety devices for scanning laser radiation (cleaning) .32
5.6.14 Design to avoid hazards by laser radiation caused by the handheld laser
processing head .32
5.6.15 Design to avoid hazards by laser radiation in cases where HLH elements can be
changed .32

iii
ISO/DIS 11553-2:2025(en)
5.6.16 Control for the contact or the intended distance between HLH aperture (nozzle)
and workpiece .32
5.6.17 Design to avoid an unintended release/start-up of laser radiation (in cases
when the HLH is positioned on a grounded table or workpiece (welding) . 33
5.6.18 Protective enclosure (workplace) . 33
5.7 Requirements related to Hazards related to materials and substances . 33
5.7.1 Protection against hazards generated by materials and substances . 33
5.8 Requirements related to Ergonomic hazards . 34
5.8.1 Design according to ergonomic principles . 34
5.8.2 Design of machine
...

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