ISO/TR 24107:2024

Air quality — Validation of air quality measurement methods in the standardization process

This document provides an overview of the validation of air quality measurement methods in the standardization process. This document deals with robustness testing and interlaboratory testing as the two main steps of partial and full validation. It applies to the different inter-related elements of air quality measurement methods, covering e.g. sampling, sample preparation, storage and transportation of the sample, extraction, analysis or quantification of a measured component and reporting. Consequently, this document focuses on the "why" and "what" of validation tasks in direct relation to the different steps of the standardization process. This document is focused on the validation tasks for measurement methods either for the whole measurement process or for one of its constituent parts. Given the informative aim of this document, it does not contain detailed procedures for performing the validation tasks, such as number of laboratories, number of samples, etc. This document is relevant to measurement methods in ISO/TC 146 and all of its subcommittees.

Qualité de l'air — La validation des méthodes de mesure de la qualité de l'air dans le processus de normalisation

General Information

• Status: Published
• Publication Date: 10-Dec-2024
• ICS: 13.040.01 - Air quality in general
• Technical Committee: ISO/TC 146/SC 4 - General aspects
• Drafting Committee: ISO/TC 146/SC 4 - General aspects
• Current Stage: 6060 - International Standard published
• Start Date: 11-Dec-2024
• Due Date: 11-Dec-2024
• Completion Date: 11-Dec-2024

Standards Content (Sample)

Technical
Report
ISO/TR 24107
First edition
Air quality — Validation of air
2024-12
quality measurement methods in
the standardization process
Qualité de l'air — La validation des méthodes de mesure de la
qualité de l'air dans le processus de normalisation
Reference number
© ISO 2024
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ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Abbreviated terms . 3
5 Purposes for validation . 4
6 Objectives for validation . 5
7 Types of validation . 5
7.1 Validation of reference methods .5
7.2 Validation of alternative methods .7
7.3 Validation in the absence of certified reference materials .7
8 Objective, design and documentation of a validation study . 8
8.1 General .8
8.2 Objective of a validation study .8
8.2.1 General .8
8.2.2 Purpose(s) for performing the measurement .8
8.2.3 Representative sampling .8
8.2.4 Sample preparation .8
8.2.5 Analysis .9
8.2.6 Performance characteristics .9
8.2.7 Determination of the result of measurement and the associated measurement
uncertainty .9
8.2.8 Documentation and reporting .9
8.3 Design of the validation study .9
8.4 Documentation of the validation study .10
8.4.1 Report on the validation study .10
8.4.2 Storage of results of the validation study .10
9 Examples of validation procedures for specific types of measurement method .11
9.1 General .11
9.2 Stationary source emissions .11
9.2.1 General .11
9.2.2 Manual measurement methods .11
9.2.3 Automated measurement methods .11
9.2.4 Test bench validation . .11
9.2.5 Field test validation . 12
9.2.6 Final evaluation . 12
9.3 Workplace atmospheres . . 12
9.4 Ambient atmospheres . 12
9.5 Meteorology . 12
9.6 Indoor air . 12
Annex A (informative) Stationary source emissions . 14
Annex B (informative) Workplace atmospheres .35
Annex C (informative) Ambient atmospheres . 47
Annex D (informative) Meteorology .50
Annex E (informative) Indoor air . 51
Annex F (informative) Information from other sources .54
Bibliography .56

iii
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee
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with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO document should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
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This document was prepared by Technical Committee ISO/TC 146, Air quality, Subcommittee SC 4, General
aspects.
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
ISO/IEC 17025 defines expectations for verification and validation of test methods. These expectations are
based on definitions in ISO/IEC Guide 99 and aim to ensure that test methods are suitable for their intended
use and that test results have a known, documented level of quality.
This document describes protocols that have been used within ISO/TC 146 and other technical committees
on air quality to verify and validate measurement methods. It also establishes guidance intended to be used
for method validation. This document seeks to establish a consistent framework for method validation
within ISO/TC 146 and its subcommittees.

v
Technical Report ISO/TR 24107:2024(en)
Air quality — Validation of air quality measurement methods
in the standardization process
1 Scope
This document provides an overview of the validation of air quality measurement methods in the
standardization process.
This document deals with robustness testing and interlaboratory testing as the two main steps of partial
and full validation. It applies to the different inter-related elements of air quality measurement methods,
covering e.g. sampling, sample preparation, storage and transportation of the sample, extraction, analysis or
quantification of a measured component and reporting.
Consequently, this document focuses on the "why" and "what" of validation tasks in direct relation to
the different steps of the standardization process. This document is focused on the validation tasks for
measurement methods either for the whole measurement process or for one of its constituent parts.
Given the informative aim of this docu
...