120
-
ASTM E1050-19
Standard Test Method for Impedance and Absorption of Acoustical Materials Using a Tube, Two Microphones and a Digital Frequency Analysis System
01.10.2019 - PDF - Englisch - ASTM
mehr dazu57,00 € -
ASTM E1050-19 + Redline
Standard Test Method for Impedance and Absorption of Acoustical Materials Using a Tube, Two Microphones and a Digital Frequency Analysis System
01.10.2019 - PDF - Englisch - ASTM
mehr dazu68,00 €