DIN EN 61249-2-21:2004-06
Действует
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); German version EN 61249-2-21:2003
— 24 стр.
