Exercises LABELING EXERCISE 3-1: NFPA 704 MARKING SYSTEM Label the quadrants in the NFPA marking system diagram above according to the type of hazard they identify. Color the quadrants the appropriate color code (one quadrant will remain uncolored). Using a black marker, write the signal number (or draw the symbol if applicable) for each of the following hazards in the appropriate quadrant: Material that on short exposure could cause serious temporary injury even with prompt medical attention Material that would have to be preheated before ignition could occur Material that is capable of detonating or exploding at normal temperature and pressure Material that is radioactive