Abstract Preview

This document describes methods for determining air speed and flow direction, CO, NO and NO2 concentrations and visibility in road tunnels using direct-reading instruments. This document specifically excludes requirements relating to instrument conformance testing.


General information

  • Status :  Published
    Publication date : 2021-03
  • Edition : 1
    Number of pages : 31
  • :
    ISO/TC 146/SC 3
    Ambient atmospheres
  • 93.060
    Tunnel construction
    13.040.20
    Ambient atmospheres

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