(1)Name of the instrument 
 NO-NO2-NOX Analyzer, Model 42i
(2)People in charge of the instruments 
Gaowei
(3)Descriptions of the instrument 
Using chemiluminescence technology, the Model 42i measures the amount of nitrogen oxides in the air from sub-ppb levels up to 100ppm.The Model 42i is a single Chamber, single photomultiplier tube design that cycles between the NO and NOX modes.
(4)Measurement accuracy and uncertainty 
Zero Noise : 0.20 ppb RMS (60 second averaging time) 
Lower Detectable Limit : 0.40 ppb (60 second averaging time) 
Precision : +/-0.4 ppb (500 ppb range) 
(5)Names of the measured species 
Surface NOX 
(6)Units of the measured species 
PPB
(7)Measurement site 
Jinshan
(8)Measurement date (from Mon/day/year to Mon/Day/year) 
From 08/30/2009 to 09/22/2009