STM PDF

Coatings for loaded printed wire boards (conformal coatings) - Part 3-1- Specifications for individual materials - Coatings for general purpose (Class 1), high reliability (Class 2) and aerospace (Class 3). CEI/IEC 61086-3-1:2004. Original standard IEC 61086-3-1-2004 in PDF full version. Additional info + preview on request

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Round wire concentric lay overhead electrical stranded conductors. IEC 1089:1991. Original standard IEC 61089-1991 in PDF full version. Additional info + preview on request

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Amendment 1 - Round wire concentric lay overhead electrical stranded conductors. Original standard IEC 61089-1991 amd1-1997 in PDF full version. Additional info + preview on request

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Measurement microphones - Part 1- Specifications for laboratory standard microphones. CEI/IEC 61094-1:2000. Original standard IEC 61094-1-2000 in PDF full version. Additional info + preview on request

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Amendment 1 - Electroacoustics - Measurement microphones - Part 2- Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique. Original standard IEC 61094-2-2022 in PDF full version. Additional info + preview on request

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Electroacoustics - Measurement microphones - Part 3- Primary method for free-field calibration of laboratory standard microphones by the reciprocity technique. IEC 61094-3:2016-06(en-fr). Original standard IEC 61094-3-2016 in PDF full version. Additional info + preview on request

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