Required Upstream Aerosol Concentration

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    Jean-François Desablens

    Hello,

    The minimum required concentration that must be used to maintain compliance according current ISO 14644-3 is not more 10 ug/l, but 1 ug/l.  Photometer TDA 2i is not able to establish its upstream concentration for such a low concentration.  

    Is there something planned or considered to technically adapt this possibility ?

    Thanks & Regards

    Jean-François Desablens

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