Chemistry Standards

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Calibrated Device 
(1) Gas concentration detection tube, siren, leakage
detector, gas concentration analyzer
(2) Gas divider
Range
(1) CO:(0.0 to 0.1) mol/mol
   CO2:(0 to 1) mol/mol
   CH4:(0.00 to 0.05) mol/mol((0 to 100) %LEL)
   C3H8:(0.00 to 0.02) mol/mol((0 to 100) %LEL)
(2)Ratio:0 % to 100 %
Uncertainty
(1) CO:2 μmol/mol 
     CO2:6 μmol/mol 
     CH4:59 μmol/mol(0.1 %LEL) 
     C3H8:26 μmol/mol(0.1 %LEL)
(2) Ratio:0.5 %
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