| Date: |
2010-08-04 |
| From: |
Lab - none |
| To: |
Lab - none |
| Title: |
Calibration |
| Notes: |
I calibrated the LI-6262 with ultra pure N2, zero air and primary standard 370.91ppm CO2 (God bottle). I changed the chemicals for the chopper/reference path and let the 6262 run over night. The N2 and zero air gave very similar results with the zero air possibly being 1ppm CO2 and 14ppm H2O higher than the N2 tank. I filled a new scrub tube with Ascarite II and Drierite and used this to scrub the zero air. I spanned with the 370.91ppm CO2 God bottle. Then I checked a new tank of 400ppm CO2 that will go to Tonzi. This tank checked out at 384.08ppm CO2. |
| Entered by: |
|
|
|
