Equipment and Calibration History

History for Luxfer NOAA-CMDL CA04119

Rec No.DateLoc FromTitleLoc ToNotes
7283 2025-05-30 Lab none Shipped Factory none Brian Wang from Ameriflux pick up our three big tanks and their four small tanks recovered from USGS. It will take about three months for Ameriflux to fill our tanks with 550 ppm CO2, 4 ppb CH4.
7282 2025-05-22 Factory none Maintenance Factory none Hydrotested at Bay Cities Pyrotector in Emeryville. The cost was $80 each and I paid with credit card on pickup. I dropped the cylinder off during the week and they were ready a few days later. Next test due in May 2030.
2905 2017-07-05 Factory Returned Lab none Returned from Ameriflux at LBNL
2910 2017-06-23 Factory Calibration Factory Calibrated by Ameriflux at LBNL CO2: 524.77 +/- 0.03ppm, CH4: 4223.8 +/- 0.4ppb, H2O 99.57 +/- 0.89ppm
2904 2017-05-11 Lab none Shipped Factory Sent to Ameriflux at LBNL to be filled with CO2, CH4, H2O standard.
2683 2017-04-01 Lab none Maintenance Lab none Hydrotested at Bay Cities Pyrotector in Emeryville. The cost was and we paid with credit card on pickup. Joe and I dropped the cylinder off during the week and Joe picked it up a few days later. Next test due in April 2022.
2899 2000-04-04 Factory Calibration Factory Calibrated at NOAA-CDML to WMO standards: 421.22ppm +/- 0.14ppm CO2 SDEV 0.04ppm. Document on file
2898 1999-12-22 Factory Calibration Factory Scott-Marrin Inc. Report on Analysis 430 +/- 4ppm CO2 balanced in ultrapure air. Document on file.
2250 1999-06-01 Factory Tested Factory Original hydrostatic test 06A99 (June 1999). Next due June 2004.