Belarus standards PDF
Acoustics Reference zero for the calibration of audiometric equipment Part 6: Reference threshold of hearing for test signals of short duration (ISO 389-6:2007). Original standard UNE-EN ISO 389-6-2008 in PDF full version. Additional info + preview on request
Document status: Active
Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions - Amendment 1: Reference threshold of hearing at 20 Hz and 18 000 Hz under free-field listening conditions and at 20 Hz under diffuse-field listening conditions (ISO 389-7:2005/Amd 1:2016). Original standard UNE-EN ISO 389-7-2006 A1-2016 in PDF full version. Additional info + preview on request
Document status: Replaced by STB UNE-EN ISO 389-7-2021
Acoustics Reference zero for the calibration of audiometric equipment Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions (ISO 389-7:2019). Original standard UNE-EN ISO 389-7-2021 in PDF full version. Additional info + preview on request
Document status: Active
Acoustics. Reference zero for the calibration of audiometric equipment. Reference equivalent threshold sound pressure levels for pure tones and circumaural earphones. Original standard UNE-EN ISO 389-8-2004 in PDF full version. Additional info + preview on request
Document status: Active
Acoustics Reference zero for the calibration of audiometric equipment Part 9: Preferred test conditions for the determination of reference hearing threshold levels (ISO 389-9:2009). Original standard UNE-EN ISO 389-9-2010 in PDF full version. Additional info + preview on request
Document status: Active
Unsealed radioactive substances. Identification and documentation. Original standard UNE-EN ISO 3925-2016 in PDF full version. Additional info + preview on request
Document status: Active