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EN 61249-2-4:2002
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Materials for printed boards and other interconnecting structures - Part 2-4: Reinforced base materials, clad and unclad - Polyester non-woven/woven fibreglass laminated sheet of defined flammability (vertical burning test), copper-clad
15-03-2002
FOREWORD
1 Scope
2 Normative references
3 Materials and construction
3.1 Insulating base
3.2 Metal foil
3.3 Reinforcement
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 sizes
6.9 Cut panels
7 Non-electrical properties of the base material after
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
7.7 Thermal coefficient of expansion
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
11 Acceptance testing
Annex A (informative) Conversion table for test method
numbers
Annex ZA (normative) Normative references to international
publications with their corresponding European
publications
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