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Hlavní stránka>BS EN ISO 21904-4:2020 Health and safety in welding and allied processes. Equipment for capture and separation of welding fume Determination of the minimum air volume flow rate of capture devices
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sklademVydáno: 2024-08-27
BS EN ISO 21904-4:2020 Health and safety in welding and allied processes. Equipment for capture and separation of welding fume Determination of the minimum air volume flow rate of capture devices

BS EN ISO 21904-4:2020

Health and safety in welding and allied processes. Equipment for capture and separation of welding fume Determination of the minimum air volume flow rate of capture devices

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Označení normy:BS EN ISO 21904-4:2020
Počet stran:20
Vydáno:2024-08-27
ISBN:978 0 539 33133 2
Status:Standard
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BS EN ISO 21904-4:2020


This standard BS EN ISO 21904-4:2020 Health and safety in welding and allied processes. Equipment for capture and separation of welding fume is classified in these ICS categories:
  • 25.160.30 Welding equipment
  • 13.100 Occupational safety. Industrial hygiene

This document specifies two methods for establishing the minimum air volume flow rate. One method is dedicated for use with captor hoods, nozzles and slot nozzles with a ratio of slot length to hose diameter of 8:1 or less. The other method is dedicated for use with on-gun extraction devices.

These methods are not applicable to down draught tables.


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