SIST ISO 10473:2002

Oznaka standarda: SIST ISO 10473:2002
Koda projekta: 032943
Organizacija: SIST
Naslov (angleški): Ambient air - Measurement of the mass of particulate matter on a filter medium - Beta-ray absorption method
Naslov (slovenski): Zunanji zrak - Merjenje mase delcev na filterskem mediju - Metoda absorpcije beta žarkov
Če kupite standardizacijski dokument v .pdf formatu prek spletne prodaje, vam nudimo 10% popust pri spodnji ceni brez DDV. Cenik SIST
Dokumenti
Ime Jezik Status Cena Dodaj v košarico
SIST ISO 10473:2002 angleški jezik Active SIST-C: 45.98 EUR
PDF
Papir
Tehnični odbor: KAZ - Kakovost zraka
ICS: 13.040.20
Status: Objavljen
Objavljen: 01-May-2002
Refer. št. objave: Sporocila 2002-05-01
Referenčna oznaka: ISO 10473:2000
Področje projekta (angleško): This International Standard describes a method for the measurement of the mass of particulate matter in ambient air and is based on the absorption of beta rays by the particulate matter. This method applies to the determination of concentrations ranging from a few micrograms per cubic metre to a few milligrams per cubic metre contained in the atmospheres of urban, rural or industrial areas. The lower mass detection limit of the method is usually 15 μg to 30 μg of deposited mass per square centimetre of surface area, S, of the filter. This means, for a sampling time t of 3 h and a flowrate q of 1 m3/h, that the concentration detection limit ranges between 5 μg/m3 and 10 μg/m3, computed as follows: Sampling techniques are not included in the scope of this International Standard. NOTE The concentration of particulate matter is calculated by dividing the mass deposited on a filter tape or individual filter, by the known volume of air sampled. However, concentration is dependent on the sampling technique used, for example, the design of the sampling inlet. Normally, for ambient-air particle sampling, large particles are filtered out by means of a sizeselective inlet (for example cascade impactor or cyclone filtration). The particle size limit is defined by the characteristics of the sampling head.

Najbolje prodajani standardi