Belarus standards PDF

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

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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

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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

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Unsealed radioactive substances. Identification and documentation. Original standard UNE-EN ISO 3925-2016 in PDF full version. Additional info + preview on request

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Sintered metal materials, excluding hardmetals Fatigue test pieces (ISO 3928:2016). Original standard UNE-EN ISO 3928-2017 in PDF full version. Additional info + preview on request

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Dentistry. Designation system for teeth and areas of the oral cavity. Original standard UNE-EN ISO 3950-2016 in PDF full version. Additional info + preview on request

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