QA metadata - Ozone
For an in-depth documentation of QA metadata and lists of allowed values please visit the QA pages. There is also a detailed documentation about special cases for ozone measurements
Example 1: Using a laboratory standard (which is traceable to a national standard) for calibrating the field instrument:
QA1 measure ID: NO01L_reference_calibration_20110517
QA1 measure description: on-site comparison with laboratory standard instrument
QA1 date: 20140716
QA1 outcome: pass
QA1 bias: 0.5 %
QA1 variability: 1.2 nmol/mol
QA1 document name: Calibration Report 20171233
QA1 document URL: "http://www.nilu.no/reports/20171233.pdf"
In this case the QA measure ID must be generated from your laboratory code, the term "reference_calibration" and the date of the calibration of the laboratory standard (this calibrated laboratory standard becomes then a QA measure which can be used in multiple QA events for calibrating a field instrument). The separate element "QA1 date" refers to the calibration of the field instrument!
Example 2: The instrument was audited by the WCC Empa:
QA1 measure ID: WCC Empa Site Audit
QA1 date: 20120902
QA1 document URL: "https://www.empa.ch/documents/56101/250799/Zeppelin_Mt12.pdf"