NF EN 61249-2-21 : 2004
Current
The latest, up-to-date edition.
MATERIALS FOR PRINTED BOARDS AND OTHER INTERCONNECTING STRUCTURES - PART 2-21: REINFORCED BASE MATERIALS, CLAD AND UNCLAD - NON-HALOGENATED EPOXIDE WOVEN E-GLASS REINFORCED LAMINATED SHEETS OF DEFINED FLAMMABILITY (VERTICAL BURNING TEST), COPPER-CLAD
01-12-2013
1 Scope
2 Normative references
3 Materials and construction
3.1 Resin system
3.2 Reinforcement
3.3 Metal foil
4 Internal marking
5 Electrical properties
6 Non-electrical properties of the copper clad laminate
6.1 Appearance of the copper clad sheet
6.2 Appearance of the unclad face
6.3 Laminate thickness
6.4 Bow and twist
6.5 Properties related to the copper foil bond
6.6 Punching and machining
6.7 Dimensional stability
6.8 Sheet size
6.9 Cut panels
7 Non-electrical properties of the base material after complete
removal of the copper foil
7.1 Appearance of the dielectric base material
7.2 Flexural strength
7.3 Flammability
7.4 Water absorption
7.5 Measling
7.6 Glass transition temperature and cure factor
8 Quality assurance
8.1 Quality system
8.2 Responsibility for inspection
8.3 Qualification inspection
8.4 Quality conformance inspection
8.5 Certificate of conformance
8.6 Safety data sheet
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
Annex ZA (normative) Normative references to international
publications with their corresponding European
publications
Bibliography
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