TS ISO 4225
Air Quality - General aspects - Vocabulary
This document specifies terms and definitions that are related to air quality (see 3.1.1.1). These are either general terms or are used in connection with the sampling (see 3.3.3.1) and measurement of gases, vapours (see 3.1.5.8) and airborne particles (see 3.2.2.1) 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.
An alphabetical index of the terms is provided in Annex A.
This document is applicable to all International Standards, ISO Technical Reports, ISO Technical Specifications, and ISO Guides related to air quality.
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About This Item
TS ISO 4225 is a vocabulary standard for air quality, bringing together the essential terms and definitions used in this field. It covers both general concepts and terminology associated with the sampling and measurement of gases, vapours, and airborne particles when determining air quality. In practice, it helps technical documents use the same words in the same way when discussing the same environmental issue.
Why these terms matter in air quality work
The terms included in this standard are considered fundamental because clear definitions are needed to avoid ambiguity and keep usage consistent. Air quality work combines several linked topics, including pollutant types, sampling approaches, measurement language, and interpretation of results. Clear terminology is especially important because gases, vapours, and airborne particles behave differently in air, so the concepts used to describe them must be distinguished carefully. In general technical context, that distinction supports more precise communication across monitoring, analysis, and reporting activities.
A shared reference for related standards
The document is intended for use across International Standards, ISO Technical Reports, ISO Technical Specifications, and ISO Guides related to air quality. It also includes an alphabetical index of the terms. As a vocabulary standard, it does not prescribe a specific measuring instrument, test procedure, or limit value; instead, it provides the terminology framework that helps related air quality documents remain consistent and unambiguous.
- Publication Date: 15.02.2021
- Standard Status: U (Yürürlükteki Standard/Standard)
- Publisher: TSE
- Document Language: en
- ICS Classification: 01.040.13 Çevre ve Sağlık Koruma, Güvenlik (Terimler); 13.040.01 Hava Kalitesi (Genel)
- Pages: 29
- Source Standard: ISO 4225:2020
- International Equivalents: ISO 4225-EQV
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