Acoustics--Reference zero for the calibration of audiometric equipment--Part 3: Reference equivalent threshold force levels for pure tones and bone vibrators
NORM herausgegeben am 18.3.1998
Designation standards: GB/T 4854.3-1998
Note: UNGÜLTIG
Publication date standards: 18.3.1998
Country: Chinese technical standard
Kategorie: Technische Normen GB