BS 3900-C5(2007) : 2007

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Determination of wet-film thickness
  4.1 General
  4.2 Mechanical methods
      4.2.1 Principle
      4.2.2 Field of application
      4.2.3 General
      4.2.4 Method 1A - Comb gauge
      4.2.5 Method 1B - Wheel gauge
      4.2.6 Method 1C - Dial gauge
  4.3 Gravimetric method
      4.3.1 Principle
      4.3.2 Field of application
      4.3.3 General
      4.3.4 Method 2 - By difference in mass
  4.4 Photothermal method
      4.4.1 Principle
      4.4.2 Field of application
      4.4.3 General
      4.4.4 Method 3 - Determination using thermal properties
5 Determination of dry-film thickness
  5.1 General
  5.2 Mechanical methods
      5.2.1 Principle
      5.2.2 Field of application
      5.2.3 General
      5.2.4 Method 4A - By difference in thickness
      5.2.5 Method 4B - Depth gauging
      5.2.6 Method 4C - Surface profile scanning
  5.3 Gravimetric method
      5.3.1 Principle
      5.3.2 Field of application
      5.3.3 General
      5.3.4 Method 5 - By difference in mass
  5.4 Optical methods
      5.4.1 Principle
      5.4.2 Field of application
      5.4.3 General
      5.4.4 Method 6A - Cross-sectioning
      5.4.5 Method 6B - Wedge cut
  5.5 Magnetic methods
      5.5.1 General
      5.5.2 Principle
      5.5.3 Field of application
      5.5.4 General
      5.5.5 Method 7A - Magnetic pull-off gauge
      5.5.6 Method 7B - Magnetic-flux gauge
      5.5.7 Method 7C - Magnetic-induction gauge
      5.5.8 Method 7D - Eddy-current gauge
  5.6 Radiological method
      5.6.1 Principle
      5.6.2 Field of application
      5.6.3 General
      5.6.4 Method 8 - Beta backscatter method
  5.7 Photothermal method
      5.7.1 Principle
      5.7.2 Field of application
      5.7.3 General
      5.7.4 Method 9 - Determination using thermal properties
  5.8 Acoustic method
      5.8.1 Principle
      5.8.2 Field of application
      5.8.3 General
      5.8.4 Method 10 - Ultrasonic thickness gauge
6 Determination of thickness of uncured powder layers
  6.1 General
  6.2 Gravimetric method
      6.2.1 Principle
      6.2.2 Field of application
      6.2.3 General
      6.2.4 Method 11 - By difference in mass
  6.3 Magnetic method
      6.3.1 Principle
      6.3.2 Field of application
      6.3.3 General
      6.3.4 Method 12A - Magnetic-induction gauge
      6.3.5 Method 12B - Eddy-current gauge
  6.4 Photothermal method
      6.4.1 Principle
      6.4.2 Field of application
      6.4.3 General
      6.4.4 Method 13 - Determination using thermal properties
7 Measurement of film thickness on rough surfaces
  7.1 General
  7.2 Apparatus and materials
  7.3 Procedure
      7.3.1 Verification
      7.3.2 Measurement
      7.3.3 Number of readings
8 Test report
Annex A (informative) Overview of methods
Bibliography

Specifies a number of methods that are applicable to the measurement of the thickness of coatings applied to a substrate.