| Date: |
2013-06-17 |
| From: |
Lab - none |
| To: |
Lab - none |
| Title: |
Calibration |
| Notes: |
Last calibration: 2012-03-18
Cell Pressure=156.27Torr, Cell Temperature=24.76C, Ring Time=12.762usec
Primary CH4 in Air at >1900 psi
CH4 Span=1.89919 ppm
CH4 = 1.895 -> 1.899 Offset: -4ppb
Notes: Done in the lab with primary NOAA GMD standard. Cross cal with secondary CH4 tank = 4.995 ppm (n = 164). Placed new label on secondary CH4 tank. Last cross cal of 4.982 ppm on June 2, 2010. |
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