STC

(redirected from Sound transmission class)
Also found in: Dictionary, Medical, Acronyms, Encyclopedia, Wikipedia.
Related to Sound transmission class: Noise Reduction Coefficient

STC

Said to Contain. In shipping, a term in which a carrier (shipper) accepts packages for transport but does not verify their contents. Depending on the international convention used, a carrier accepting goods on an STC basis may only be legally liable for the number of packages, rather than the value of the contents. This is especially important in the event of a lawsuit or insurance claim. STC is also called shipper's load and carry (SL&C) or said to weigh (STW).
References in periodicals archive ?
The company's high-tech products provide the most reliable and proven Sound Transmission Class and Impact Insulation Class solutions on the market, the lowest-cost RF-shielding solutions, as well as the only THX-certified soundproofing solution in the world.
Drawing from more than 20 years of experience designing and certifying cinemas, professional post-production studios and CE products, THX engineers found that the QR-545 is one of the industry's highest performing sound isolation solutions, as measured by Sound Transmission Class (STC) standards.
International Builders Code (IBC), BOCA and ICBO require demising (party or separation) walls to rate a Sound Transmission Class of 50 or better as measured in a certified independent lab.