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.
KS 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
Number of Pages:10
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Kes 3,038.00