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Influence of Calibration Procedures for Particle Number counting System
Published May 19, 2010 by Society of Automotive Engineers of Japan in Japan
Event: JSAE Spring Conference
The regulation for particle number for type approval is decided to be introduced in Euro 5b. Therefore, the particle number counting systems (PNCS) are available in the market from several instrument companies. All of PNCS in the market are suitable for Reg. 83 annex 4a, but these instruments have some structural differences, such as dilution method, setting of temperature. Detailed parts of calibration procedures are also different in each instrument company. Therefore, it is important to investigate the influence of the difference of the calibration methods and the procedures on the measurement results of PCRF.
In this presentation, we will show the influence of difference of calibration procedure, such as thermal treatment, particle species and so on.