>BSI Standards >31 ELECTRONICS>31.180 Printed circuits and boards>BS EN IEC 61249-2-53:2025 Materials for printed boards and other interconnecting structures Reinforced base materials clad and unclad — PTFE unfilled laminate sheets of defined flammability (vertical burning test), copper-clad
immediate downloadReleased: 2025-12-02
BS EN IEC 61249-2-53:2025
Materials for printed boards and other interconnecting structures Reinforced base materials clad and unclad — PTFE unfilled laminate sheets of defined flammability (vertical burning test), copper-clad
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Standard number:
BS EN IEC 61249-2-53:2025
Pages:
26
Released:
2025-12-02
ISBN:
978 0 539 29060 8
Status:
Standard
DESCRIPTION
BS EN IEC 61249-2-53:2025
This standard BS EN IEC 61249-2-53:2025 Materials for printed boards and other interconnecting structures is classified in these ICS categories:
31.180 Printed circuits and boards
IEC 61249-2-53:2025 specifies requirements for properties of PTFE unfilled reinforced laminated sheet of a thickness 0,05 mm up to 10,0 mm of defined flammability (vertical burning test), copper-clad. This part of IEC 61249 is applicable to the design, manufacture, use of PTFE unfilled reinforced laminated sheet of defined flammability (vertical burning test), copper-clad. Its flame resistance is defined in terms of the flammability requirements of 8.4.