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

Publication date: 21 shk 2020

General information

Current stage: 90.60 Effective date: 5 qer 2025

Originator: ISO

Owner: ISO/TC 44/SC 9

Type: International Standard

ICS: 13.100 25.160.30

Gjuha: anglisht frëngjisht

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Statusi: Publikuar

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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.

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

General information

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