Found this crowd on the interweb who do CAA Burn testing and can do it for £32 in a few days.
TFT (Ilkley) Ltd.
The Sidings Business Park, SKIPTON, North Yorkshire, BD23 ITB 1
Phone or Fax 01756 792525
Only thing was I has to carefully remove the leather seat back pocket as a sample for them to burn and see if its up to scratch. Suppose a seat pocket is a small price to pay as opposed to facing an recover....
Will post progress