Standard Test Method for Impedance and Absorption of Acoustical Materials Using A Tube, Two Microphones and A Digital Frequency Analysis System
NORMA vydaná dňa 15.1.2008
Označenie normy: ASTM E1050-08
Poznámka: NEPLATNÁ
Dátum vydania normy: 15.1.2008
Počet strán: 11
Približná hmotnosť: 33 g (0.07 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
absorption, frequency response function, impedance, impedance ratio, impedance tube, normal incidence sound absorption coefficient, specific normal acoustic impedance, transfer function, Acoustical tests, Digital sound transmission, Impedance, Microphones, Signal/noise determination, 0Sound transmission--building materials/applications, Two-microphone method, ICS Number Code 091.120.20