BS ISO 23431:2021
Current
The latest, up-to-date edition.
Measurement of road tunnel air quality
Hardcopy , PDF
English
23-03-2021
| Committee |
EH/2/3
|
| DocumentType |
Standard
|
| Pages |
40
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
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.
| Standards | Relationship |
| ISO 23431:2021 | Equivalent |
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