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Original standard PD IEC TR 61010-3-042-2002 in PDF full version. Additional info + preview on request

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Original standard PD IEC TR 61010-3-043-2002 in PDF full version. Additional info + preview on request

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Electroacoustics. Measurement microphones - Absolute pressure calibration of microphones at low frequencies using calculable pistonphones. Original standard PD IEC TR 61094-10-2022 in PDF full version. Additional info + preview on request

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Programmable controllers - User guidelines. Original standard PD IEC TR 61131-4-2004 in PDF full version. Additional info + preview on request

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Industrial-process measurement and control. Programmable controllers - Guidelines for the application and implementation of programming languages. Original standard PD IEC TR 61131-8-2017 in PDF full version. Additional info + preview on request

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Multicore and symmetrical pair/quad cables for digital communications - Correction procedures for the measurement results of return loss and input impedance. Original standard PD IEC TR 61156-1-5-2013 in PDF full version. Additional info + preview on request

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