BS EN ISO 21904-4:2020
Current
The latest, up-to-date edition.
Health and safety in welding and allied processes. Equipment for capture and separation of welding fume Determination of the minimum air volume flow rate of capture devices
Hardcopy , PDF
English
27-08-2024
| Committee |
WEE/40
|
| DocumentType |
Standard
|
| ISBN |
9780580995255
|
| Pages |
20
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
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.
| Standards | Relationship |
| ISO 21904-4:2020 | Identical |
| EN ISO 21904-4:2020 | Identical |
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