Equipment and Calibration History

History for Luxfer NOAA-CMDL CA03923

Rec No.	Date	Loc From	Title	Loc To	Notes
7284	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.
7280	2025-05-22	Lab none	Maintenance	Lab none	Hydrotested at Bay Cities Pyrotector in Emeryville. The cost was 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.
5422	2021-08-16	Factory none	Returned	Lab none	Returned from LBNL by Sebastien after refill and calibration.
5421	2021-07-22	Factory none	Calibration	Factory none	Calibrated by Ameriflux at LBNL CO2: 488.75 +/- 0.02ppm, CH4: 3386.5 +/- 0.4ppb, H2O -6.24 +/- 1.34ppm. 2000psi.
5417	2021-05-26	Lab none	Shipped	Factory none	Sent to Ameriflux at LBL for refill.
2903	2017-07-05	Factory	Returned	Lab none	Returned from Ameriflux at LBNL
2909	2017-06-23	Factory	Calibration	Factory	Calibrated by Ameriflux at LBNL CO2: 474.19 +/- 0.01ppm, CH4: 3121.0 +/- 0.1ppb, H2O 81.47 +/- 1.55ppm
2902	2017-05-11	Lab none	Shipped	Factory	Sent to Ameriflux at LBNL to be filled with CO2, CH4, H2O standard.
2682	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.
2896	1999-09-01	Factory	Calibration	Factory	Calibrated at NOAA-CDML to WMO standards: CO2 344.95ppm 0.01ppm SDEV balanced in dry air
2897	1999-08-16	Factory	Calibration	Factory	Scott-Marrin Inc. Report on Analysis 347 +/- 3ppm CO2 balanced in ultrapure air. Document on file.
2249	1999-02-01	Factory	Tested	Factory	Original hydrostatic test 02A99 (February 1999). Next due February 2004.