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…SME Council membership revealed ahead of first meetingGovernment takes action to back small businesses and…UK government sets out AI Safety Summit ambitions
