| Date: |
2011-10-10 |
| From: |
Lab - none |
| To: |
Lab - none |
| Title: |
Calibration |
| Notes: |
Calibrated in differential mode for check of new secondary CO2 standard. Ambient temperature was 24.554C, pressure was 100.43kPa. Using zero air (800psi) and god bottle 370.91ppm CO2 (1700psi).
Flowing zero air in both sample and reference
CO2 = 0.55umol/mol adjusted to zero.
H2O = 0.0003
Flowing zero air in reference and god bottel in sample
CO2 = 371.25ppm adjusted to 370.91ppm.
Flowing zero air in reference and new secondary standard in sample, I wrote down 90 reading and made an average. The new CO2 secondary standard has 410.49ppm CO2. |
| Entered by: |
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