1. American Petroleum Institute, Fuel Choices for Fuel Cell Powered Vehicles11, 13(undated).
2. Occidental Chemical Corporation Material Safety Data Sheet for Hydrogen Gas 6 December 2000 (available at www.oxychem.com/products/msds/m1142.pdf).
3. Air Products and Chemicals Inc. Material Safety Data Sheet for Hydrogen(Rev. 3/90 1990).
4. Hord J., Int. J. Hydrogen Energy3, 157 (1978)See, e.g.
5. Fed. Reg.65, 6729 (2000).