IEC 60746-4:1992

FOREWORD
Clause
1 Scope and object
2 Normative reference
3 Symbols and definitions
  3.1 Symbols
  3.2 Membrane covered amperometric sensor unit
  3.3 Influence quantities
  3.4 Units
  3.5 Zero drift
  3.6 Span drift
  3.7 Polarization voltage
  3.8 Sensitivity
  3.9 Stabilization time
4 Procedure for statement
  4.1 Zero and span drifts
  4.2 Additional statements on sensor units
5 Recommended standard values and ranges of influence
  quantities affecting the performance of electronic
  units
6 Verification of values
  6.1 Calibration solutions
  6.2 Simulator for testing electronic units
  6.3 Test procedure for sensor units and analyzer
Annexes
A Supplementary general information on amperometric
  oxygen sensors
B Technique for the preparation of batch calibration
  standards by the saturation approach
C Calibration solutions for low levels of oxygen in
  water measurement
D Solubility of oxygen in water
E Bibliography

Applies to analyzers using membrane covered amperometric sensors for the continuous determination of dissolved oxygen partial pressure or concentration. Applies to analyzers for use on potable water, industrial process streams, industrial waste water, municipal waste water, and receiving bodies of water (e.g. lakes, rivers and estuaries).