Dead on what I was taught, Art. The only thing is that with a blister agent (such as mustard gas), you're supposed to "pinch-blot" instead of just blotting. In any case, DON'T rub!

Also, about tear gases: if you're exposed to one (such as CS or CN), these are actually micropulverized powders, not true gases. They can and will get into your hair, which means that if you sweat they can run into your eyes EVEN AFTER you have left the scene. I know this from personal experience. If you are exposed to them, first turn into the wind to blow them away from your eyes and noses as quickly as possible, leave the area and then, as soon as possible, hose off or shower (don't bathe) using shampoo or soap. Wash your clothes, too, preferably twice, and keep them seperate before they are washed.