Reference number
ISO 21904-3:2018
© ISO 2024
International Standard
ISO 21904-3:2018
Health and safety in welding and allied processes — Requirements, testing and marking of equipment for air filtration — Part 3: Determination of the capture efficiency of on-torch welding fume extraction devices
Edition 1
2018-02
Read sample
Published (Edition 1, 2018)
This publication was last reviewed and confirmed in 2023. Therefore this version remains current.

ISO 21904-3:2018

Language
Format
CHF 129
Convert Swiss francs (CHF) to your currency

Abstract

ISO 21904-3:2018 defines a laboratory method for measuring the welding fume capture efficiency of on-torch extraction systems. The procedure only prescribes a methodology, leaving selection of the test parameters to the user, so that the effect of different variables can be evaluated.

ISO 21904-3:2018 is applicable to integrated on-torch systems and to systems where a discrete extraction system is attached to the welding torch close to the arc area. The methodology is suitable for use with all continuous wire welding processes, all material types and all welding parameters.

The method can be used to evaluate the effects of variables such as extraction flow rate, extract nozzle position, shielding gas flow rate, welding geometry, welding torch angle, fume emission rate, etc., on capture efficiency.

General information

  • Status
     : Published
    Publication date
     : 2018-02
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 1
    Number of pages
     : 21
  • Technical Committee :
    ISO/TC 44/SC 9
    ICS :
    13.100  25.160.01 
  • RSS updates

Life cycle

Got a question?

Check out our Help and Support

  2. Store
  3. Standards catalogue
  4. TC
  5. ISO/TC 44/SC 9
  6. ISO 21904-3:2018