The marking on the back of the matting must be durable, clearly visible and must not impair the electrical matting and to conform to the specification it must show the following:-

•name, trademark or identification of the manufacturer

•Suitable for live working; double triangle

•number of the relevant IEC standard immediately adjacent to the symbol, (IEC 61111)

•month and year of manufacture

•category if applicable

•class designation.

Below is an example of how the marking may look for the Class 0 Matting, you will notice that it is in red this is part of the colour coding in the standard and it denotes Class 0.