Standard

ISO 21904-4:2020

Feb 2020 Current

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Abstract

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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Standard from ISO
Published: February 21 2020
Edition: 1
Document type: IS
Pages
ISBN:

Publisher: ISO
Distributor: ISO
ICS: 13.100
ICS: 25.160.30
International TC: ISO/TC 44/SC 9

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Adopted by: SN EN ISO 21904-4:2020
Adopted by: NF EN ISO 21904-4:2020
Revises: ISO 15012-2:2008

ISO 21904-4:2020

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ISO 21904-4:2020

ISO 15012-2:2008

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ISO 21904-4:2020

ISO 15012-2:2008

Abstract

Products specifications

Product Relations

Product life cycle