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)

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Spanish, Castilian, English

Published date

27-05-2020

Publisher

Asociación Española de Normalización

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This part of ISO 21904 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.Neither method is applicable to down draught tables.

Committee	CTN 14
DocumentType	Standard
Pages	19
PublisherName	Asociación Española de Normalización
Status	Current

Standards	Relationship
ISO 21904-4:2020	Identical
EN ISO 21904-4:2020	Identical

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UNE-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)

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UNE-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)

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