- The purpose of the NFPA rating is to advise emergency response personnel via the hazard diamond sticker of hazards they may encounter when entering the room in response to fire or other situations.
- Chemical substances are rated for degree of HEALTH RISK (blue diamond), FLAMMABILITY (red diamond), REACTIVITY (yellow diamond), on a scale of 0 to 4.
- The white diamond is used to indicate the presence of large quantities of chemicals possessing unusual water reactivity (W) or oxidative capability (Oxy). [16]
http://www.phmsa.dot.gov/hazmat/library/erg 2012. Digital file. | | | | | | | |
