Dear Customer,
This year, on the occasion of our 100th anniversary, we will be positioning ourselves for the future as part of the DIN Group with a new name.
And so as of April 22, 2024
Beuth Verlag will become DIN Media.
You can find out more about our new name and the reasons behind it here.
Yours sincerely,
Beuth Verlag
Technical rule [CURRENT]
Product information on this site:
Quick delivery via download or delivery service
All transactions are encrypted
This document describes a standard method for determining the particle number concentration in ambient air in a range up to about 107 cm-3 for averaging times equal to or larger than 1 min. The standard method is based on a Condensation Particle Counter (CPC) operated in the counting mode and an appropriate dilution system for concentrations exceeding the counting mode range. It also defines the performance characteristics and the minimum requirements of the instruments to be used. The lower and upper sizes considered within this document are 7 nm and a few micrometres, respectively. This document describes sampling, operation, data processing and QA/QC procedures including calibration parameters.