| Date: |
2013-05-08 |
| From: |
Lab - none |
| To: |
Lab - none |
| Title: |
Calibration |
| Notes: |
Last calibration: 2012-12-13
AGC=15.5 SDM=1 DAC1=none DAC2=none
Ambient P=101.55kPa, Tair=23.16C, Tdew=10.26C
Zero air at 1700psi, God bottle 421.22 at 1700 Tdewspan=15.03
CO2 zero 0.8901 -> 0.8904 Offset: 0.90ppm
CO2 span 1.001 -> 1.0198 Offset: -10.07ppm
H2O zero 0.7016 -> 0.7022 Offset: 4.2ppm
H2O span 0.9935 -> 0.9726 Offset: 0.44ppm
Notes: Secondary CO2 standard seemed low at 344.62. I rechecked it with the LI6262 and got even lower value about 337. I calibrated with the god bottle but the IGRA was still off about 10ppm. I double checked the secondary standard and it read 335 - okay.
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