Back

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
Valid from 21.02.2020
Directives or regulations
None

Standard history

Status
Date
Type
Name
21.02.2020
Main
20.03.2008
Main
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.
*
*
*
PDF
82.61 € incl tax
Paper
82.61 € incl tax
Standard monitoring