Which is more important, STC or IIC

Feb 13, 2025 ... ASTM E492 – Impact Insulation Class. IIC 50. ASTM E90 – Sound Transmission Class. STC 62. PRODUCT INSTALLATION & WARRANTY INFORMATION. Lot ... tonal or informational content as well as the prevailing ambient noise ... Sound transmission class. (STC) is a single-number rating used to compare ... Jan 31, 2024 ... • Attend informational/pre-bid meetings. Page 5 ... Construction work includes installation of new Sound Transmission Class (STC). Sep 2, 2015 ... normalized noise isolation class (NNIC). (c) ASTM Test Method E90 - The single-number rating is called sound transmission class (STC). (d) ... May 31, 2022 ... Performance of an auditory task modulates neural representations of task-related sounds at the level of single neurons or small populations, ... ASTM E90 - Sound Transmission Class STC 51. Acoustical Performance - 6 Inch ... The above testing information is provided for informational and guidance when ... i. Acoustic Terms, Definitions and General Information. GE Energy | GER-4248 ... Sound Transmission Class (STC) — A single number decibel rating of the ... The STC (Sound Transmission Class) is a numeric value generated by the ... This Tech Note is provided for informational purposes only. No liability is ... It is provided here for informational purposes only. ... 1/2” QuietRock® 510 is designed to improve Sound Transmission Class (STC) performance at an entry level ... The principal business is in connection with fixed works requiring specialized engineering knowledge and skill. Class “B” — General Building Contractor. The ...