Most recent
ONORM EN 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 (ISO 21904-4:2020)
This document lays down two methods for determining the minimum air flow flow. A method is suitable for use with hoods, nozzles and slot nozzles with a ratio of slot length to hose diameter of 8: 1 or less. The other method is suitable for use with burner-integrated suction devices. These procedures are not suitable for suctionwelding tables.
CONTENT PROVIDER
Austrian Standards Institute [on]
Austrian Standards Institute [on]