A center curtain air bag apparatus for a vehicle efficiently protects a rear seat passenger with an air bag cushion that is deployed during a car collision accident. 5 and 7, wherein the viscosity of the composition is less than 1800 mPa\xb7sec, and wherein a gas is maintained in the composition for at least 1 minute after preparation. The provider then supplies the application, which still includes the trace elements, and the baseline trace to a user. The data stored on the resultant broken pieces of disc media are now not easily readable, and may be discarded.