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IEC

PDF Standards IEC 61265 Ed. 2.0 b:2018

Electroacoustics – Instruments for measurement of aircraft noise – Performance requirements for systems to measure sound pressure levels in noise certification of aircraft
standard by International Electrotechnical Commission, 05/08/2018

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IEC

PDF Standards IEC 61249-2-39 Ed. 1.0 b:2012

Materials for printed boards and other interconnecting structures – Part 2-39: Reinforced base materials clad and unclad – High performance epoxide and non-epoxide, woven E-glass laminate sheets of defined flammability (vertical burning test), copper-clad for lead-free assembly
standard by International Electrotechnical Commission, 11/29/2012

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