ISO-21904-4 › 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 - 1ST EDITION - CURRENT


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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.

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13.100 (Occupational safety. Industrial hygiene Protective clothing and equipment, see 13.340 Workplace lighting, see 91.160.10)

25.160.30 (Welding equipment Including thermal cutting equipment)

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Document Number

ISO 21904-4:2020

Revision Level

1ST EDITION

Status

Current

Publication Date

Feb. 1, 2020

Committee Number

ISO/TC 44/SC 9