Corrositex is an invitro test that determines chemical corrosivity and permits assignment of Packing Group classification for Class 8 corrosives. This test replaces the rabbit test of dermal corrosivity by providing a reliable means of mimicking this test. The proprietary core technology of the Corrositex test is based upon a biomembrane and chemical detection system, which becomes colored when exposed to potentially corrosive substances. The Corrositex testing system consists of a glass vial filled with a chemical detection fluid capped by a proprietary bio-barrier membrane, which is designed to mimic the effect of corrosives on living skin. As soon as the corrosive sample destroys this bio-barrier, the fluid below changes color or texture. Users simply record the time it takes for the sample to break through the membrane. Then, depending on their needs, they can assign the proper U.N. Packing Group classification for U.S. DOT or EPA compliance, or use the data as a ranking tool or to substantiate marketing claims.