What is PD CEN/TS 17434 about?
PD CEN/TS 17434 discusses ambient air, with a focus on aerosols. PD CEN/TS 17434 guides you with steps to determine the particle number size distribution of atmospheric aerosol. PD CEN/TS 17434 describes a standard method for determining particle number size distributions in ambient air in the size range from 10 nm to 800 nm at total concentrations up to approximately 105 cm–3 with a time resolution of a few minutes.
The standard method is based on a Mobility Particle Size Spectrometer (MPSS) used with a bipolar diffusion charger and a Condensation Particle Counter (CPC) as the detector. PD CEN/TS 17434 describes the performance characteristics and minimum requirements of the instruments and equipment to be used and describes sampling, operation, data processing and QA/QC procedures, including calibration.
Who is PD CEN/TS 17434 for?
PD CEN/TS 17434 on the distribution of atmospheric aerosol is useful for:
- Manufacturers of aerosol
- Manufacturers of commercial cleaning products
- Chemical testing laboratories
- Chemical scientists
Why should you use PD CEN/TS 17434?
PD CEN/TS 17434 provides a standard method for determining particle number size distributions in ambient air to assess air quality, it appears necessary to supplement gravimetrically determined mass concentrations such as PM10 or PM2.5 with a measurement of the particle number concentration. Since ultrafine particles with diameters of D < 0,1 μm make an almost insignificant contribution to the mass concentration of atmospheric aerosol particles, they can be detected with counting measuring methods of sufficient sensitivity.
