• There are no items in your cart

ISO 23431:2021

Current
Current

The latest, up-to-date edition.

Measurement of road tunnel air quality
Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English, French

Published date

03-19-2021

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.

DocumentType
Standard
Pages
31
ProductNote
This standard also refers to: ISO 6145.
PublisherName
International Organization for Standardization
Status
Current

Standards Relationship
SS-ISO 23431:2021 Identical
NF ISO 23431:2021 Identical

View more information
US$175.00
Excluding Tax where applicable

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.