EN IEC 61249-2-46:2018

FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Materials and construction
5 Electrical properties
6 Non-electrical properties of the copper-clad laminate
7 Non-electrical properties of the base material after
   complete removal of the copper foil
8 Quality assurance
9 Packaging and marking
10 Ordering information
Annex A (informative) - Engineering information
Annex B (informative) - Common laminate constructions
Annex C (informative) - Guideline for qualification and
        conformance inspection
Bibliography
Annex ZA (normative) - Normative references to
         international publications with their
         corresponding European publications

IEC61249-2-46:2018(E) gives requirements for properties of non-halogenated epoxide non‑woven reinforced core/woven E-glass reinforced surface laminate sheets of thermal conductivity and defined flammability (vertical burning test), copper-clad for lead-free assembly in thicknesses of 0,60mm up to 1,70mm. The flammability rating is achieved through the use of non-halogenated fire retardants reacted as part of the epoxide polymeric structure. The glass transition temperature is defined to be 105°C minimum. Thermal Conductivity is defined to be (1,5 ± 0,2)W/(m•K).