gas metrology - calibrations

Calibrations of secondary standard ozone analysers

For those Member State NMIs that do not hold primary standards for ozone in air, the BIPM offers calibrations of secondary standard ozone analysers.

Interested laboratories are invited to contact Dr J. Viallon for the relevant calibration request forms.

Matrix or material	Analyte or component	Dissemination range of measurement capability
		Amount-of-substance fraction x(O₃) / (nmol/mol)	Absolute expanded uncertainty (k = 2) / (nmol/mol)
synthetic air	ozone	0 to 1000	2 Q[0.52, 0.0034 x(O₃), 0.0106 x(O₃)]

The notation Q[a, b] stands for the root-sum-square of the terms between brackets
The claimed uncertainty includes a term coming from the best device under test
Absolute expanded uncertainty: k = 2, level of confidence 95%

A study of systematic biases and measurement uncertainties in ozone mole fraction measurements with the NIST Standard Reference Photometer

Authors:

Viallon J., Moussay P., Norris J.E., Guenther F.R., Wielgosz R.I.

Chemistry Department

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Ozone analyser, Teledyne API 400E

Ozone analyzer Advanced Pollution Instrumentation 400, No. 823

Ozone analyzer Advanced Pollution Instrumentation 400, No. 823

Ozone analyzer, Thermo Electron Instruments 49C, No. 416206681

Ozone analyser, Advanced Pollution Instrumentation 400, No. 823

Ozone analyser Environnement SA O3-42M, No. 32

Ozone analyser, Advanced Pollution Instrumentation 400 No. 823