BSI 20/30382325 DC 2020

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BS ISO 23431. Measurement of road tunnel air quality

Published By	Publication Date	Number of Pages
BSI	2020	36

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Categories: 13.040.20 - Ambient atmospheres, BSI

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Description

This Standard describes methods for determining air speed and flow direction, carbon monoxide (CO), nitric oxide (NO) and nitrogen dioxide (NO₂) concentrations and visibility in road tunnels using direct-reading instruments. This Standard specifically excludes requirements relating to instrument conformance testing.

Additional information

Status	Definitive
Pages	36
Publication Date	2020-04-09
Standard Number	20/30382325 DC
Title	BS ISO 23431. Measurement of road tunnel air quality
Identical National Standard Of	ISO/DIS 23431
Descriptors	Performance, Calibration, Air pollution, Infrared radiation, Testing conditions, Air, Optical measurement, Concentration (chemical), Sampling methods, Gas analysis, Meteorological measurement, Determination of content, Test equipment, Chemical analysis and testing, Luminescence, Nitrogen oxides, Nitric oxide, Nitrogen dioxide, Pollution, Pollutant gases
Publisher	BSI
Committee	EH/2/3
ICS Codes	13.040.20 - Ambient atmospheres

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BSI 20/30382325 DC 2020

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