I haven't looked at this in detail, but this could well be defensive in nature. In other words, training to detect chemical agents dispersed by an enemy (e.g., Iran or the US). Can you point me to a clearly offensive training operation?
see #14 & #17
After 1991 Iraq was absolutely prohibited from having any Chemical Weapons Agents no matter how small the quantity is and no matter whether it was for defensive or offensive purposes. This applied training in the Chemical Field Laboratory using Live Chemical Agents like VX, Nerve Agents, Mustard Gas, was against every UN resolution.