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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
Part 4: Determination of the minimum air volume flow rate of capture devices
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Summary
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.
Notes
90.92 : Norme internationale à réviser
Technical characteristics
| Publisher | International Organization for Standardization (ISO) |
| Publication Date | 02/21/2020 |
| Edition | 1 |
| Page Count | 10 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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