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Air impaction sampling procedure requested


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#1 Amlond1

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Posted 15 January 2019 - 02:07 AM

Hello, I’m looking for an example procedure using the impactation method for air sampling. The procedure that is in place right now I have been unable to verify it’s accuracy. The procedure is 3mins at 40L/min. Should the results be reported in cfu/m3 or cfu/120L? If in cfu/m3, how is that calculated?



#2 Charles.C

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Posted 15 January 2019 - 03:12 AM

Hello, I’m looking for an example procedure using the impaction method for air sampling. The procedure that is in place right now I have been unable to verify it’s accuracy. The procedure is 3mins at 40L/min. Should the results be reported in cfu/m3 or cfu/120L? If in cfu/m3, how is that calculated?

 

Hi Amlond,.

 

Not my area but It sounds like you need to have the unit calibrated.

 

Possibly necessitating a Service Company ?

 

Most publications seem to use cfu/m3


Kind Regards,

 

Charles.C





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