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Main page>IEC Standards>IEC 61249-3-6:2026 - 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
immediate downloadReleased: 2026-05-19
IEC 61249-3-6:2026
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
Matériaux pour circuits imprimés et autres structures d'interconnexion - Partie 3-6: Spécification intermédiaire pour les matériaux de base non renforcés, plaqués et non plaqués - Feuilles stratifiées en PTFE avec charges d’inflammabilité définie (essai de combustion verticale), plaquées cuivre
IEC 61249-3-6:2026 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.
