Standard Test Method for Impedance and Absorption of Acoustical Materials by Impedance Tube Method
NORMA vydaná dňa 1.10.2022
Designation standards: ASTM C384-04(2022)
Publication date standards: 1.10.2022
The number of pages: 9
Approximate weight : 27 g (0.06 lbs)
Country: American technical standard
Kategória: Technické normy ASTM
Keywords:
absorption, impedance, impedance ratio, impedance tube, normal incidence sound absorption coefficient, specific normal acoustic impedance,, ICS Number Code 91.120.20 (Acoustics in buildings. Sound insulation)