BS EN ISO 2177:2004

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Instrumentation
6 Electrolyte
7 Factors affecting the measuring accuracy
   7.1 Coating thickness
   7.2 Current variation
   7.3 Area variation
   7.4 Agitation (if required)
   7.5 Alloy layer between coating and substrate
   7.6 Purity of coatings
   7.7 Condition of test surface
   7.8 Density of coating material
   7.9 Cleanliness of the cell
   7.10 Cleanliness of electrical connections
   7.11 Calibration standards (if used)
   7.12 Non-uniform dissolution
8 Procedure
   8.1 General
   8.2 Preparation of test surface
   8.3 Cell application
   8.4 Electrolysis
   8.5 Undercoats
   8.6 Examination after test
   8.7 Coatings on cylindrical specimens
9 Expression of results
10 Measurement uncertainty
11 Test report
Annex A (informative) Typical electrolytes
Annex B (informative) Types of instrument
Annex ZA (normative) Normative references to international
                     publications with their relevant
                     European publications

Explains a coulometric method, by anodic dissolution, for measuring the thickness of metallic coatings.