The last one is a full color IR Flag patch. I was told it was not official but this says otherwise. Three U.S. flag insignia are authorized for wear with the ACU: full-color, full-color IR, and subdued IR.. It comes from Wikipedia.
Your fire extinguishers should have ABC ratings on them. Here are the most common types of fire extinguishers: 1  Water extinguishers or APW extinguishers (air-pressurized water) are suitable for class A fires only.2  Never use a water extinguisher on grease fires, electrical fires or class D fires-the flames will spread and make the fire bigger!t is vital to know what type of extinguisher you are using. Using the wrong type of extinguisher for the wrong type of fire can be life-threatening. These are only the common types of fire extinguishers. There are many others to choose from.
Fire extinguishers are divided into four categories, based on different types of fires. Each fire extinguisher also has a numerical rating that serves as a guide for the amount of fire the extinguisher can handle. The higher the number, the more fire-fighting power.