PDF Standards IEC 61249-2-9 Ed. 1.0 b:2003
Materials for printed boards and other interconnecting structures – Part 2-9: Reinforced base materials, clad and unclad – Bismaleimide/triazine modified epoxide or unmodified, woven E-glass reinforced laminated sheets of defined flammability (vertical burning test), copper-clad
standard by International Electrotechnical Commission, 02/27/2003