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Electroacoustics. Sound level meters - Pattern evaluation tests. Original standard BS EN 61672-2-2013 + A1-2017 in PDF full version. Additional info + preview on request

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Electroacoustics. Sound level meters - Periodic tests. Original standard BS EN 61672-3-2013 in PDF full version. Additional info + preview on request

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Radionuclide imaging devices. Characteristics and conditions - Gamma cameras for planar, wholebody, and SPECT imaging. Original standard BS EN 61675-2-2015 in PDF full version. Additional info + preview on request

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Photovoltaic systems. Power conditioners. Procedure for measuring efficiency. Original standard BS EN 61683-2000 in PDF full version. Additional info + preview on request

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Ultrasonics. Flow measurement systems. Flow test object. Original standard BS EN 61685-2002 in PDF full version. Additional info + preview on request

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Design automation - Behavioural languages. VHDL multilogic system for model interoperability. Original standard BS EN 61691-2-2001 in PDF full version. Additional info + preview on request

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