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SSH 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)

Dec 9, 2021

General information

60.60     Dec 9, 2021

DPS

DPS/KT 133

European Norm

13.100     25.160.30  

English  

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Published

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Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
SSH EN ISO 15012-2:2008

NOW

PUBLISHED
SSH EN ISO 21904-4:2020
60.60 Standard published
Dec 9, 2021

Related project

Adopted from EN ISO 21904-4:2020