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ISO/AWI 21904-4
Health and safety in welding and allied processes — Equipment for capture and separation of welding fume — Part 4: Determination of the minimum air volume flow rate of capture devices
Reference number
ISO/AWI 21904-4
Edition 2
© ISO 2026
New project
Under development
Drafting has started.
Will replace ISO 21904-4:2020

Abstract

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.

General information

  • Status
     : Under development
    Stage
    : New project approved [10.99]
  • Edition
     : 2
  • Technical Committee :
    ISO/TC 44/SC 9
  • RSS updates

Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goals

3
Good Health and Well-being
9
Industry, Innovation and Infrastructure
12
Responsible Consumption and Production

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