ISO 4226:2026

SLOVENSKI STANDARD
01-oktober-2026
Nadomešča:
SIST ISO 4226:2013
Kakovost zraka - Splošni vidiki - Veličine in enote za poročanje o rezultatih
meritev kakovosti zraka
Air quality - General aspects - Quantities and associated units for reporting results of air
quality measurements
Qualité de l'air - Aspects généraux - Grandeurs et unités associées pour consigner les
résultats des mesurages de la qualité de l'air
Ta slovenski standard je istoveten z: ISO 4226:2026
ICS:
01.060 Veličine in enote Quantities and units
13.040.01 Kakovost zraka na splošno Air quality in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

International
Standard
ISO 4226
Fourth edition
Air quality — General aspects —
2026-09
Quantities and associated units
for reporting results of air quality
measurements
Qualité de l'air — Aspects généraux — Grandeurs et unités
associées pour consigner les résultats des mesurages de la qualité
de l'air
Reference number
© ISO 2026
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Published in Switzerland
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Quantities and associated units . 1
4.1 General .1
4.2 Use of quantities and units .1
4.3 Use of prefixes .2

iii
Foreword
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bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
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with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
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This document was prepared by Technical Committee ISO/TC 146, Air quality, Subcommittee SC 4, General
aspects.
This fourth edition cancels and replaces the third edition (ISO 4226:2007), which has been technically
revised.
The main changes are as follows:
— Clause 3 has been added;
— information regarding the use of quantities, units and prefixes has been added to Clause 4;
— Table 1 has been reorganized and symbols for quantities have been added;
— Table 2 on prefixes has been added.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

iv
Introduction
The International Standards on the general aspects of air quality include the standardization of methods for
the measurement of gases, vapours and particles. In order to enable results to be compared either within or
between countries, it is reasonable to use only a minimal number of symbols and units that have been agreed
upon to report the results of measurements and other relevant information so that sound conclusions can be
drawn.
v
International St
...