DIN Standards Committee Welding and allied processes
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
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.
Begin
2025-10-09
WI
00121999
Planned document number
prEN ISO 21904-4 rev
Responsible national committee
NA 092-00-09 AA - Health and safety in welding and allied processes
Responsible european committee
CEN/TC 121 - Welding and allied processes
