BS EN 61249-2-21:2003

This standard BS EN 61249-2-21:2003 Materials for printed boards and other interconnecting structures is classified in these ICS categories:

• 31.180 Printed circuits and boards

Gives requirements for properties of non-halogenated epoxide woven E-glass reinforced laminated sheets of defined flammability, copper-clad in thicknesses 0,05 mm up to 3,2 mm. The flammability rating is achieved through the use of non-halogenated inorganic and/or organic compounds acting as fire retardants.