The CENELEC(European Committee for Electro-technical Standardization)has been harmonising European safety products for an umber of years,and the IEC (International Electro-technical Commission)drew up an electrical safety matting standard in 1992.
The IEC 61111 standard categorises product by working voltage,and allocates a Class of protection against these.Each meter of matting is colour-coded on the reverse to high light what level of protection it offers. The classes,and corresponding colour codes,are as follows