ASTM Standard E336 Standard Test Method for Measurement of Airborne Sound Attenuation between Rooms in Buildings is used to conduct field measurements of STL. Standard methodology, laboratory precision and accuracy, and manufacturing standards have changed over the years.
The ASTM Standard E336 method is employed to measure sound attenuation between rooms in buildings, particularly for the assessment of Sound Transmission Loss (STL). The standard's methodology, laboratory precision and accuracy, and manufacturing standards have undergone changes throughout history.