ISO 21904-4:2020
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ISO 21904-4:2020

Abstract
General information

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

60.60 : Norme internationale publiée

Technical characteristics

Publisher International Organization for Standardization (ISO)
Publication Date 02/21/2020
Edition 1
Page Count 10
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ISBN ---
Weight (in grams) ---
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