Posted on December 19, 2017December 20, 2017 by Pulse AssentISO 389-1:2017 Acoustics. Reference zero for the calibration of audiometric equipment Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones Link: ISO 389-1:2017 Acoustics. Reference zero for the calibration of audiometric equipment Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones Source: BSI Standards Related Posts:New laws to introduce digital labelling for…Government puts business first with Brexit…UK and Singapore Enhance Cooperation in Sustainable…SME Council membership revealed ahead of first meetingGovernment takes action to back small businesses and…
