BS ISO 24237:2005

Foreword
Introduction
1 Scope
2 Symbols and abbreviations
3 Outline of method
4 Method for evaluating the repeatability and constancy of
  the intensity scale
  4.1 Obtaining the reference sample
  4.2 Mounting the sample
  4.3 Cleaning the sample
  4.4 Choosing the spectrometer settings for which intensity
       stability is to be determined
  4.5 Operating the instrument
  4.6 Options for initial or subsequent evaluation measurements
  4.7 Measurements for the intensity and repeatability
  4.8 Calculating the peak area intensities, intensity ratios
       and uncertainties
  4.9 Procedure for the regular evaluation of the constancy
       of the intensity scale
  4.10 Next evaluation
Annex A (informative) Example of calculations and measurements
        of the intensity repeatability for a commercial X-ray
        photoelectron spectrometer using unmonochromated
        Mg K[Alpha] X-rays
Bibliography

Specifies a method for evaluating the repeatability and constancy of the intensity scale of X-ray photoelectron spectrometers, for general analytical purposes, using unmonochromated Al or Mg X-rays or monochromated Al X-rays.

This International Standard specifies a method for evaluating the repeatability and constancy of the intensity scale of X-ray photoelectron spectrometers, for general analytical purposes, using unmonochromated Al or Mg X-rays or monochromated Al X-rays. It is only applicable to instruments that incorporate an ion gun for sputter cleaning. It is not intended to be a calibration of the intensity/energy response function. That calibration may be made by the instrument manufacturer or other organization. The present procedure provides data to evaluate and confirm the accuracy with which the intensity/energy response function remains constant with instrument usage. Guidance is given on some of the instrument settings that may affect this constancy.