[PDF] IEC 61249-2-21:2003 gratis
Fecha de publicación: 12/11/2003 Materials for printed boards and other interconnecting structures – Part 2-21: Reinforced base materials, clad and unclad – Non-halogenated epoxide woven E-glass reinforced laminated sheets of defined flammability (vertical burning test), copper-clad IEC 61249-2-21:2003