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: Feb 21, 2020

General information

Current stage: 60.60 Effective date: Feb 21, 2020

Originator: ISO

Owner: ISO/TC 44/SC 9

Type: International Standard

ICS: 13.100 25.160.30

Languages: English French

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Status: 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

Revises
ISO 15012-2:2008

NOW

PUBLISHED
ISO 21904-4:2020
60.60 Standard published
Feb 21, 2020

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