NS EN ISO 8289 : 1ED 2001

Foreword
1 Scope
2 Normative reference
3 Term and definition
4 Principle
5 Test reagent
6 Apparatus
7 Test specimen
8 Procedure
9 Expression of results
10 Test report

Defines two low voltage tests to detect and locate defects that extend to the basis metal in porcelain and vitreous porcelain enamel coatings. Method A (electrical) is suitable for rapid detection and determination of general location of defects. Method B (optical), based on colour effects, is suited to the more precise detection of defects and their exact locations. Method A is commonly applied to flat surfaces where method B is for more intricate shapes.