| Date: |
2011-11-18 |
| From: |
Lab - none |
| To: |
Lab - none |
| Title: |
Calibration |
| Notes: |
Calibrated in differential mode for check of Frank's new secondary CO2 standard. Ambient temperature was 21.5C, pressure was 100.45kPa. Using N2 and god bottle 402.69ppm CO2 (1850psi).
Flowing N2 in both sample and reference
CO2 = -0.30umol/mol adjusted to zero.
H2O = -0.15
Flowing N2 in reference and god bottel in sample
CO2 = 401.8ppm adjusted to 402.69ppm.
Flowing N2 in reference and new secondary standard in sample, I wrote down 75 readings and made an average. The new CO2 secondary standard has 398.22ppm CO2. |
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