23-01-2023
0
Engineering
Electronic Components
0 L.E.
IEC 61249-2-4 /2001 (Stability date 2023) 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 .
Adopted
Not Obligatory
31.180