SOUND TRANSMISSION LOSS TESTING - ASTM E336

We have performed  ASTM E336 and E1007 testing on military sites, in government buildings, SCIF locations,   and for private contractors. We would love to hear what you need to test.

ASTM E336 is a test method commonly utilized in the construction industry to assess the acoustic performance of building partitions, specifically in measuring airborne sound attenuation between rooms in buildings. The objective is to ensure that the partitions meet the necessary criteria for noise reduction specifications in various settings, such as residential, commercial, SCIF, or industrial buildings. We have experience with military and government SCIF requirements and can generate the necessary reports.

Typically, a team of NOAL staff will arrive on-site with calibrated test equipment, including microphones, loudspeakers, and advanced portable analysis equipment. The test involves generating and measuring loud sound in a designated source room, measuring the sound levels, background noise levels, and absorption in a designated receiving room, and collecting information about the room volumes and partition areas. The results of the test will be presented in a test summary, with further analysis available upon request in the form of a formal, accredited test report. The results are often expressed in terms of ASTC, NIC and NNIC, among other metrics.

In addition, ASTM E336 is often paired with ASTM E1007, which involves measuring tapping machine impact sound transmission through floor-ceiling assemblies and associated support structures in a room below. NOAL staff will utilize a tapping machine during this additional test to assess the sound transmission through the floor assembly.