NBN EN 61249-2-23 : 2006
Current
The latest, up-to-date edition.
MATERIALS FOR PRINTED BOARDS AND OTHER INTERCONNECTING STRUCTURES - PART 2-23: REINFORCED BASE MATERIALS, CLAD AND UNCLAD - NON-HALOGENATED PHENOLIC CELLULOSE PAPER REINFORCED LAMINATED SHEETS, ECONOMIC GRADE, 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 sheet
6.1 Appearance of the copper-clad sheet
6.2 Appearance of the unclad face
6.3 Laminate thickness, including copper foil
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 sizes
6.9 Rectangularity of 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
A.1 Chemical properties
A.2 Electrical properties
A.3 Flammability properties
A.4 Mechanical properties
A.5 Physical properties
A.6 Thermal properties
Annex ZA (normative) Normative references to international
publications with their corresponding
European publications
Tables
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