prEN 17660-2

Air quality - Performance evaluation of air quality sensor systems - Part 2: Particulate matter in ambient air

General information

00.60   Close of review   Mar 11, 2026

CEN

CEN/TC 264 Air quality

European Norm

Scope

This document specifies the general principles, including testing procedures and requirements, for the classification of performance of low-cost sensor systems for the monitoring of particulate matter in ambient air at fixed sites. The classification of sensor systems includes tests that are performed under prescribed conditions. It does not guarantee performance in locations that are different from the tests, variations in meteorological climate from the test programme or account for stability over time, which can only be assessed under ongoing quality control strategies.
The described procedure is applicable to the determination of the mass concentration of particulate matter. The pollutants that are considered in this document are PM10 and PM2,5 in the range of concentrations expected in ambient air.
This document provides a classification that is consistent with the requirements for indicative measurements and objective estimation defined in Directive 2008/50/EC. In addition, it provides a classification for applications (non-regulatory measurements) that require more relaxed performance criteria.
This document applies to sensor systems used as individual systems. It does not apply to sensor systems as part of a sensor network. However, for some applications (e.g. in cities) sensor systems are deployed as part of a sensor network.

Related legislation

Legislation related to this standard

2008/50/EC

Directive 2008/50/EC of the European Parliament and of the Council of 21 May 2008 on ambient air quality and cleaner air for Europe

Life cycle

PREVIOUSLY

PUBLISHED
CEN/TS 17660-2:2024

NOW

IN_DEVELOPMENT
prEN 17660-2
00.60 Close of review
Mar 11, 2026