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BS EN ISO 21904-4:2020

BS EN ISO 21904-4:2020

$102.76

Health and safety in welding and allied processes. Equipment for capture and separation of welding fume – Determination of the minimum air volume flow rate of capture devices

Published By Publication Date Number of Pages
BSI 2020 20
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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.

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BS EN ISO 21904-4:2020
$102.76