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EN ISO 6145-11:2008

Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 11: Electrochemical generation (ISO 6145-11:2005) EN ISO 6145-11:2008

Publication date:   Sep 30, 2009

General information

60.60 Standard published   Aug 20, 2008

CEN

CEN/TC 238 Test gases, test pressures, appliance categories and gas appliance types

European Norm

71.040.40   Chemical analysis

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Scope

ISO 6145-11:2005 specifies a method for the preparation of calibration gas mixtures by using electrochemical generation of a calibration component and introduction into a complementary gas flow. By alteration of the gas flow or the charge passed through the cell electrolyte, it is possible to change the composition of the gas mixture. The relative expanded uncertainty of the calibration gas content, U, obtained by multiplying the relative combined standard uncertainties by a coverage factor, k = 2, is not greater than 5 %.
The method described in ISO 6145-11:2005 is intended to be applied to the preparation of calibration gas mixtures in the volume fraction ranges (0,1 to 250) x 10-6.

Life cycle

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PUBLISHED
EN ISO 6145-11:2008
60.60 Standard published
Aug 20, 2008

Relations

Adopted from ISO 6145-11:2005 IDENTICAL