Volume 3 of the HTML Edition: Iraq's Chemical Weapons Program.
Click on Annex F:
Detailed Preliminary Assessment of Chemical Weapons Findings
Beginning in May 2004, ISG recovered a series of chemical weapons from Coalition military units and other sources. A total of 53 munitions have been recovered, all of which appear to have been part of pre-1991 Gulf war stocks based on their physical condition and residual components.
The most interesting discovery has been a 152mm binary Sarin artillery projectile—containing a 40 percent concentration of Sarin—which insurgents attempted to use as an Improvised Explosive Device (IED). The existence of this binary weapon not only raises questions about the number of viable chemical weapons remaining in Iraq and raises the possibility that a larger number of binary, long-lasting chemical weapons still exist.
PS I'm leaving now.