IEC 61249-2-4 : 1.0
IEC 61249-2-4 : 1.0
MATERIALS FOR PRINTED BOARDS AND OTHER INTERCONNECTING STRUCTURES - PART 2-4: REINFORCED BASE MATERIALS, CLAD AND UNCLAD - POLYESTER NON-WOVEN/WOVEN FIBREGLASS LAMINATED SHEET OF DEFINED FLAMMABILITY (VERTICAL BURNING TEST), COPPER-CLAD
International Electrotechnical Committee