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Materials for printed boards and other interconnecting structures - Part 4-15- Sectional specification set for prepreg materials, unclad (for the manufacture of multilayer boards) - Multifunctional epoxide woven E-glass prepreg of defined flammability (vertical burning test) for lead-free assembly. Original standard BS EN 61249-4-15-2009 in PDF full version. Additional info + preview on request
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Materials for printed boards and other interconnecting structures - Part 4-16- Sectional specification set for prepreg materials, unclad (for the manufacture of multilayer boards) - Multifunctional non-halogenated epoxide woven E-glass prepreg of defined flammability (vertical burning test) for lead-free assembly. Original standard BS EN 61249-4-16-2009 in PDF full version. Additional info + preview on request
Document status: Active
Materials for printed boards and other interconnecting structures Part 4-18- Sectional specification set for prepreg materials, unclad (for the manufacture of multilayer boards) - High performance epoxide woven E-glass prepreg of defined flammability (vertical burning test) for lead-free assembly. Original standard BS EN 61249-4-18-2013 in PDF full version. Additional info + preview on request
Document status: Active
Materials for printed boards and other interconnecting structures Part 4-19- Sectional specification set for prepreg materials, unclad (for the manufacture of multilayer boards) - High performance non-halogenated epoxide woven E-glass prepreg of defined flammability (vertical burning test) for lead-free assembly. Original standard BS EN 61249-4-19-2013 in PDF full version. Additional info + preview on request
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Optical amplifiers. Test methods - Polarization mode dispersion parameter - Poincaré sphere analysis method. Original standard BS EN 61290-11-2-2005 in PDF full version. Additional info + preview on request
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Optical amplifiers. Test methods - Out-of-band insertion losses. Filtered optical power meter method. Original standard BS EN 61290-7-1-2007 in PDF full version. Additional info + preview on request
Document status: Active