Reference number
ISO 21904-4:2020
© ISO 2024
International Standard
ISO 21904-4:2020
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
Edition 1
2020-02
Read sample
Published (Edition 1, 2020)

ISO 21904-4:2020

Language
Format
CHF 63
Convert Swiss francs (CHF) to your currency

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
     : Published
    Publication date
     : 2020-02
    Stage
    : International Standard published [60.60]
  • Edition
     : 1
    Number of pages
     : 10
  • Technical Committee :
    ISO/TC 44/SC 9
    ICS :
    13.100  25.160.30 
  • RSS updates

Life cycle

Got a question?

Check out our Help and Support

  2. Store
  3. Standards catalogue
  4. ICS
  5. 13
  6. 13.100
  7. ISO 21904-4:2020