Vitreous and porcelain enamels. Determination of surface scratch hardness according to the Mohs scale Ingestion-build-52208 The test methods described include

The test methods described include the following: tensile

including switch mode power supplies

designed in accordance with EN 13480-3

The recommendations apply particularly to fits between cylindrical parts

Vitreous and porcelain enamels. Determination of surface scratch hardness according to the Mohs scale Ingestion-build-52208 The test methods described includeBS EN 15771: 2010 Vitreous and porcelain enamels. Determination of surface scratch hardness according to the Mohs scale BS EN 15771 is a European Standard specifies a method of test for determining the scratch hardness of the surface of vitreous and porcelain enamels. Contents of BS EN 15771: Foreword 1 Scope 2 Normative references 3 Terms and definitions 4 Principle 5 Reference minerals 6 Test specimen 7 Procedure 8 Assessment of result 9 Test report