Chamber testing 28.09.2010. A/C on Flushed and ran 3 fill/flush cycles Fill complete, A/C still on.

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Presentation transcript:

Chamber testing

A/C on

Flushed and ran 3 fill/flush cycles Fill complete, A/C still on

Slower increase this time but heading towards a similar number

Levelled at around 230p/cc

Up to 600p/cc by midnight. Could this be related to the change in the bag volume (i.e. the negative pressure in the bag exposing a leak?)

Another increase started at 7am reached >1000p/cc by 9am – also very high NOx (92ppb) most of it NO (85ppb) at 9am. However, the NOx could be diffusion related

If there really was a leak, then it could only be exposed after about 9 hours of running with CPC, NOx, O3 sampling.