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Information × Registration Number 0208U002902, 0107U004929 , R & D reports Title Ensuring of keeping and efficiency of the state measurement primary standard of sound pressure unit in air medium popup.stage_title Head Pasko Eduard, Registration Date 27-02-2008 Organization State scientific-research institute of metrology of measuring and control systems popup.description2 Current repair of a room of the standard for increase of its sound insulation was been carried out. Repair of couplers for reference microphones such as LS2P was been implemented, new high-precision details to them was made. Scheduled checking of commercial measuring equipment, that is the part of the standard, was been carried out. Product Description popup.authors popup.nrat_date 2020-04-02 Close