ČSN EN 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

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Dostupné prevedenie: Tlačené

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Podrobné informácie

Označenie: ČSN EN ISO 21904-4

Dátum vydania: 01.09.2020

Stránok: 24

Krajina: Česká technická norma

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Anotácia

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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