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MSZ EN 12341:2024

Dokumentumazonosító

183217

Cím

Környezeti levegő. A szálló por PMˇ10^ vagy PMˇ2,5^ tömegkoncentrációjának meghatározása szabványos gravimetriás mérési módszerrel

Angol cím

Ambient air. Standard gravimetric measurement method for the determination of the PMˇ10^ or PMˇ2,5^ mass concentration of suspended particulate matter

Alkalmazási terület

This document specifies a standard method for determining the PMˇ10^ or PMˇ2,5^ mass concentrations of suspended particulate matter in ambient air by sampling the particulate matter on filters and weighing them by means of a balance. Measurements are performed with samplers with inlet designs as specified in Annex A, operating at a nominal flow rate of 2,3 m^3ˇ/h, over a nominal sampling period of 24 h. The method covers the determination of ambient air concentrations of specific fractions of suspended particulate matter in zones classified as rural areas, urban-background areas, traffic-orientated locations and locations influenced by industrial sources. Measurement results are expressed in µg/mm^3ˇ, where the volume of air is the volume at ambient conditions near the inlet at the time of sampling. The range of application of this document is for 24 h measurements from approximately 1 µg/m^3ˇ (i.e. the limit of detection of the standard measurement method expressed as its uncertainty) up to 150 µg/m^3ˇ for PMˇ10^ and 120 µg/m^3ˇ for PMˇ2,5^. NOTE 1 Although the European Standard is not validated for higher concentrations, its range of application could well be extended to ambient air concentrations up to circa 200 µg/m^3ˇ when using suitable filter materials (see 5.1.5.2). This document specifies procedures and gives requirements for the testing and use of so-called sequential samplers, equipped with a filter changer, suitable for extended stand-alone operation. Sequential samplers are commonly used throughout the European Union for the measurement of concentrations in ambient air of PMˇ10^ or PMˇ2,5^. However, this document does not exclude the use of single-filter samplers. NOTE 2 Older versions of samplers, which conform to previous versions of EN 12341 [2 and 21], can still be used to evaluate equivalence of candidate methods, using the procedures described in EN 16450 [5] and in [11]. As newer versions of samplers tested under this document become available, discontinue the use of older reference samplers in EN 16450 and in [11]. Type testing reports of equivalent methods are still valid if they were commissioned prior to the availability of type approved reference samplers tested under this document. This document also provides guidance for the selection and testing of filters with the aim of reducing the measurement uncertainty of the results obtained when applying this document.

ICS

13.040.20 Környezeti atmoszférák

Műszaki Bizottság

A szabvány nyelve

angol

Az érvényesség kezdete

2024-03-01

Forrás

idt EN 12341:2023

Előd

MSZ EN 12341:2014

Utód

Módosítás

SZK-közlemények

Kapcsolódó európai jogszabály

2008/50/EK Az Európai Parlament és a Tanács 2008/50/EK irányelve ( 2008. május 21. ) a környezeti levegő minőségéről és a Tisztább levegőt Európának elnevezésű programról (AIR1)

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