1. Central Calibration Laboratory
2. Calibration Results

Beginning February 8, 2021, results for CO₂ are on the WMO X2019 scale.

CO₂ results on the previous WMO X2007 scale are available here.

Reference Gas Calibration Results

Serial Number:

Gas Species:

CO₂

CH₄

CO

N₂O

SF₆

Results Format:

HTML

JSON

The JSON format will allow you to download a file of results for further analysis. Go here for more details.

CSV

The CSV format will allow you to download a spreadsheet compatible file of results for further analysis.

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