
State system for ensuring the uniformity of measurements. Acoustics. Reference zero for the calibration of audiometric equipment. Part 8. Reference equivalent threshold sound pressure levels of pure tones for circumaural earphones
NORMA vydaná dňa 1.12.2012
Designation standards: GOST R ISO 389-8-2011
Publication date standards: 1.12.2012
The number of pages: 12
Approximate weight : 36 g (0.08 lbs)
Country: Russian technical standard
Kategória: Technické normy GOST