Many thanks that helps tremendously, so I assume that it is the supplier responsibility to provide CofC's for new media?

If we were looking at using conditioned (G2) CW would the same seizes still apply, as specified in table 1?

Also in relations we are having some issues clarifying the correct media size for the equivalent mentioned above, should table 1 be used in conjunction with AMS 2431/4C tables 3 & 4 to obtain the wire sizes? ie

780 96 0.096" (2.438mm)
330 41 0.041" (1.040mm)
110 14 0.014" (0.360mm)