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IEC 61249-2-53:2025 ED1

Materials for printed boards and other interconnecting structures - Part 2-53: Reinforced base materials clad and unclad - PTFE unfilled laminate sheets of defined flammability (vertical burning test), copper-clad IEC 61249-2-53:2025 ED1

Publication date:   Oct 10, 2025

General information

60.60   Standard published   Oct 10, 2025

IEC

TC 91

International Standard

31.180   Printed circuits and boards

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Scope

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.

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PUBLISHED
IEC 61249-2-53:2025 ED1
60.60 Standard published
Oct 10, 2025




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