Standard Swedish standard · SS-EN 14907:2005

Ambient air quality - Standard gravimetric measurement method for the determination of the PM2,5 mass fraction of suspended particulate matter

Status: Withdrawn

· Replaced by: SS-EN 12341:2014
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Standard Swedish standard · SS-EN 14907:2005

Ambient air quality - Standard gravimetric measurement method for the determination of the PM2,5 mass fraction of suspended particulate matter
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Scope
This European Standard describes a standard method for determining the PM2,5 mass concentration ofsuspended particulate matter in ambient air by sampling the particulate matter on filters and weighing them by means of a balance.
Measurements are made over a sampling period of about 24 h, and in line with the Directive, are expressed as µg/m3, where the volume of air is the volume at ambient conditions near the inlet at the time of sampling.
The range of application of the standard is from 1 µg/m3 (i.e. the limit of detection of the standard
measurement method expressed as its uncertainty) up to 120 µg/m3 (i.e. the maximum concentration level observed during the field study undertaken by CEN/TC 264/WG 15 to validate the standard).
NOTE Although the standard is not validated for concentrations over 120 µg/m3, its range of application could well be extended to commonly encountered ambient concentrations up to circa 200 µg/m3 when using glass or quartz fibre filters.
At these high concentrations and particulate mass loadings no filter clogging is to be expected. Also the flow rate can be easily maintained at the nominal setting.
The equivalence procedure in Annex A specifies two approaches, depending on whether the candidate method differs slightly or fundamentally from the standard method.
In the former case, involving only slight differences from the standard method (“variations on a theme”) Annex A provides a restricted procedure to compare only the pertinent differences, instead of a full field test. This part of the annex serves to give practical guidance for determining equivalence for measurement methods commonly used in monitoring networks, and includes examples of common variations to the standard method,
such as different filter storing or conditioning procedures and the variation of the standard method for the application as automated filter changer.

Subjects

Ambient atmospheres (13.040.20)


Buy this standard

Standard Swedish standard · SS-EN 14907:2005

Ambient air quality - Standard gravimetric measurement method for the determination of the PM2,5 mass fraction of suspended particulate matter
Subscribe on standards - Read more Dölj
Price: 1 152 SEK
standard ikon pdf

PDF

Price: 1 152 SEK
standard ikon

Paper

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Product information

Language: English

Written by: Svenska institutet för standarder

International title:

Article no: STD-40767

Edition: 1

Approved: 9/16/2005

No of pages: 30

Replaced by: SS-EN 12341:2014