NA 134

VDI/DIN-Commission on Air Pollution Prevention (KRdL) - Standards Committee


Air quality - General aspects - Vocabulary (ISO/DIS 4225:2019); Text in German and English


This doucment specifies terms and definitions that are related to air quality. These are either general terms or are used in connection with the sampling and measurement of gases, vapours and airborne particles for the determination of air quality. The terms included are those that have been identified as being fundamental because their definition is necessary to avoid ambiguity and ensure consistency of use. This document is applicable to all International Standards, ISO Technical Reports, ISO Technical Specifications, and ISO Guides related to air quality.



Planned document number

DIN ISO 4225

Project number


Responsible national committee

NA 134-04-03 AA - General Aspects 

Responsible international committee

ISO/TC 146/SC 4/WG 1 - Terminology 

draft standard

Air quality - General aspects - Vocabulary (ISO/DIS 4225:2019); Text in German and English
Order from Beuth Verlag

previous edition(s)

Air quality - General aspects - Vocabulary (ISO 4225:1994)

Order from Beuth Verlag


Mr. Dr. rer. nat.

Rolf Kordecki

VDI-Platz 1
40468 Düsseldorf

Tel.: +49 211 6214-410
Fax: +49 211 6214-157

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