Foreword<br>1 Scope<br>2 Normative references<br>3 Terms and definitions<br>4 Steel substrate requirements<br>5 Final thickness of fired enamel<br>6 Functional characteristics of coating<br> 6.1 Adherence test<br> 6.2 Wear resistance<br> 6.3 Impact resistance<br> 6.4 Surface hardness (Mohs)<br> 6.5 Scratch resistance<br> 6.6 Flatness<br> 6.7 Acid and chemical resistance<br>7 Aesthetic characteristics of coating<br> 7.1 Colour<br> 7.2 Gloss<br> 7.3 Surface appearance<br>8 Writeability and eraseability<br> 8.1 Chalkboards<br> 8.2 Whiteboards<br>9 Resistance to graffiti<br>National Annex NA (informative) Bibliography