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Information × Registration Number 0203U006418, 0102U003943 , R & D reports Title Keeping and ensuring the efficiency of the state measurement standard of sound pressure unit in air media popup.stage_title Head Pasko Eduard, Registration Date 14-05-2003 Organization State scientific-research institute of metrology of measuring and control systems popup.description2 The maintenance, the routine repair and the improvement of the equipment of the state primary measurement standard of the unit of sound pressure in air media ДЕТУ 10-01-00 was carried out with the purpose of saving and providing its proper functions as scientific object ,which is national property Product Description popup.authors popup.nrat_date 2020-04-02 Close