0

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) EN ISO 21904-4:2020

Publication date:   Jul 15, 2020

General information

60.60 Standard published   Mar 11, 2020

CEN

CEN/TC 121 Welding and allied processes

European Norm

13.100   Occupational safety. Industrial hygiene | 25.160.30   Welding equipment

Buying

Published

Language in which you want to receive the document.

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WITHDRAWN
EN ISO 15012-2:2008

NOW

PUBLISHED
EN ISO 21904-4:2020
60.60 Standard published
Mar 11, 2020