Rochelle: 

Yes, the laboratory may combine the three Method 0010 fractions
extracted as per Method 3542 and analyze them as one using Method 8270C
or D.  You should issue this response to all of the sources and testing
companies. 

Peter Westlin

Measurement Policy Group

OAQPS, SPPD

919-541-1058















	

Rochelle: 

  

On the 0010 analytical for Delaq furnaces, what (if any) compositing is
allowed?  I know that 8270 likes three separate fractions, but we have
combined fractions in other programs to lower detection limits (which
will likely be important here), and save on analytical costs.  The lab
(we have generally used TestAmerica) has not had any problems combining
analytical fractions prior to analysis. 

  

Thanks, 

Paul Ottenstein 

Technical Director 

Air Pollution Testing 

