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
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English Hardcopy
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Number of Standard:
CSN EN ISO 21904-4
Category:
050682
Pages:
24
Released:
01.09.2020
Catalog number:
510400
DESCRIPTION
CSN EN ISO 21904-4
CSN EN ISO 21904-4 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. Original English text of CSN EN Standard. The price of the Standard included all amendments and correcturs.