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IEC 61249-3-6 ED1

Materials for circuit boards and other interconnecting structures - Part 3-6: Sectional specification set for unreinforced base materials clad and unclad - Polytetrafluoroethylene (PTFE) filled laminate sheets of defined flammability (vertical burning test), copper-clad

General information

50.20     Mar 6, 2026

PRVD    Apr 17, 2026

IEC

TC 91

International Standard

31.180  

Scope

IEC 61249-3-6 ED1 specifies requirements for properties of polytetrafluoroethylene (PTFE) filled unreinforced laminated sheet of a thickness 0,02 mm up to 3,2 mm, of defined flammability (vertical burning test), copper-clad.
This document is applicable to the design, manufacture, use of PTFE filled unreinforced laminated sheet of defined flammability (vertical burning test), copper-clad.
Its flame resistance is defined in terms of the flammability requirements of 8.3.

Life cycle

NOW

PROJECT
IEC 61249-3-6 ED1
50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks
Mar 6, 2026

National adoptions

dnaSRPS EN IEC 61249-3-6:2023  
ISS

Materials for printed boards and other interconnecting structures - Part 3-6: Sectional specification set for unreinforced base materials, clad and unclad - Ptfe filled laminate sheets of defined flammability (vertical burning test), copper-clad

50.20   Proof sent to secretariat or FDIS ballot initiated: 8 weeks

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