I.S. EN ISO 6145-11:2008
Current
The latest, up-to-date edition.
GAS ANALYSIS - PREPARATION OF CALIBRATION GAS MIXTURES USING DYNAMIC VOLUMETRIC METHODS - PART 11: ELECTROCHEMICAL GENERATION
Hardcopy , PDF
English
01-01-2008
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Foreword
Introduction
1 Scope
2 Normative references
3 Procedure
3.1 Principle
3.2 Complementary gas
3.3 Electrolytic systems for gas generation
3.4 Apparatus
3.4.1 Cell construction
3.4.2 Current supply and gas flow control
3.5 Gas mixture preparation
3.5.1 Complementary gas
3.5.2 Voltage supply
3.5.3 Calculation of gas mixture content
4 Uncertainty evaluation
4.1 Introduction
4.2 Sources of uncertainty
4.2.1 Complementary gas flow
4.2.2 Gas generation
4.2.3 Absorption of generated gas in the cell
electrolyte
4.2.4 Effect of moisture content
4.2.5 Effect of temperature
4.2.6 Purity of electrolytic chemicals
4.2.7 Impurities in complementary gas
4.3 Uncertainty of volume fraction
5 Electrochemical cell design
Annex A (informative) Example of a commercial electrochemical
cell
Annex B (informative) Schematics of electrolytic cells used
for gas generation
Annex C (informative) Schematic of electrical supply to gas
generation cell
Annex D (informative) Decomposition voltages of solutions
between smooth platinum electrodes
Bibliography
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