RESPIRABLE DUST SAMPLER ECOTECH MODEL AAS 217
RESPIRABLE DUST SAMPLER ECOTECH MODEL AAS 217
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High Volume Air Samplers remain workhorse for air quality moniotring. Modification are done in basic HVS by incorporating a cyclone in the sampler which fractionate ambient air suspended particles into two fractions one upto 10 micron which passes through the cyclone and deposited on fitler paper while other bove 10 micron removed by cyclone get accumulated in the cup fitted at bottom of cyclone.
Ecotech developed RDS based on the concept and requirement given in the BIS 5182 (Part-23) 2006. Provision has been made in the RDS for fitting of Gaeous Pollutants Sampling Attachment.
Due to provision of fitting of this attachment AAS 217 has become an unique system using which one can sample simultanously PM10, SO2, NO2, NH3 and O3. Collected PM10 dust can be analyzed for Heavy metals (Ni, As and Pb) and Benzo(a)pyrene without compromizing in single dust sample collected on 8x10’’ glass micro fibre filter paper of AAS 217 as per recommended standard methods. Detailed litreture Gaesous Pollutants Sampling Attachment Ecotech AAS 109 can be referred for its specifications.
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