BS EN ISO 1463:2004

Foreword
1 Scope
2 Normative references
3 Term and definitions
4 Principle
5 Factors relating to measurement uncertainty
  5.1 Surface roughness
  5.2 Taper of cross-section
  5.3 Deformation of coating
  5.4 Rounding of edge of coating
  5.5 Overplating
  5.6 Etching
  5.7 Smearing
  5.8 Magnification
  5.9 Calibration of stage micrometer
  5.10 Calibration of micrometer eyepiece
  5.11 Alignment
  5.12 Uniformity of magnification
  5.13 Lens quality
  5.14 Orientation of eyepiece
  5.15 Tube length
6 Preparation of cross-sections
7 Measurement
8 Measurement uncertainty
9 Test report
Annex A (informative) Guidance on the preparation
        and measurement of cross-sections
Annex B (informative) Taper of cross-section and
        measurement of tooth-constructed coatings
Annex C (informative) Some typical etchants for
        use at room temperature
Bibliography

Specifies a method for the measurement of the local thickness of oxide layers, metallic coatings, and porcelain or vitreous coatings, by using an optical microscope for microscopical examination of cross sections. Also covers factors relating to the measuring accuracy.