Vitreous and porcelain enamels. Determination of surface scratch hardness according to the Mohs scaleBS 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

indirect contact test

This standard does not cover building security or Category O lifts

Implementing website standards

H8 and H10

BS EN 13402-2:2002

protected corridors and protected shafts

It covers areas such as:

BS 7958 also provides good practice for all other CCTV schemes

ME systems

Work on site: wearing screeds

nor does it apply to research personnel developing technology for subsequent approval by a certified Level 3

BS EN 14931:2006 contains: