STB PDF

Corrigendum - Electroacoustics Measurement microphones Part 3: Primary method for free-field calibration of laboratory standard microphones by the reciprocity technique. Original standard UNE-EN 61094-3-2017 AC-2017 in PDF full version. Additional info + preview on request

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Radio-frequency connectors - Sectional specification for type L32-4 and L32-5 threaded multi-pin radio-frequency connectors. Original standard UNE-EN 61169-59-2017 in PDF full version. Additional info + preview on request

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Electrical insulating materials and systems. A.C. voltage endurance evaluation. Original standard UNE-EN 61251-2016 in PDF full version. Additional info + preview on request

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Electroacoustics. Octave-band and fractional-octave-band filters - Periodic tests. Original standard UNE-EN 61260-3-2016 in PDF full version. Additional info + preview on request

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Fibre optic interconnecting devices and passive components. Basic test and measurement procedures - Examinations and measurements. Concentricity of non-angled ferrules and non-angled ferrules with fibre installed. Original standard UNE-EN 61300-3-25-2016 in PDF full version. Additional info + preview on request

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Amendment 1 - Electrostatics - Measurement methods. Ability of materials and products to dissipate static electric charge. Original standard UNE-EN 61340-2-1-2015 A1-2022 in PDF full version. Additional info + preview on request

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