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Fire hazard sign7/23/2023 ![]() The OSHA classification methods put hazards into categories for labeling and training. The NFPA 704 is used primarily by fire and emergency responders / safety personnel to quickly gather information regarding the hazards present. The OSHA's Hazard Communication standard and the NFPA 704 standard were designed differently, however both systems use numbers which can lead to confusion. How do OSHA's Hazard Communication Classification Numbers differ from NFPA 704 Ratings? Note: The Section 2 Hazard Category of the SDS/MSDS is NOT the hazard rating that should be placed on the Hazard Diamond labels. The following sections can be reviewed to determine the ratings: What information on the SDS/MSDS is used to rate hazardous materials? The placard should be posted on the two exterior walls of a facility or building, each access to a room or area, or each principal means of access to an exterior storage area. If there are several entrances to the facility, there should be a placard at each entrance. The placard should be visible in case of an emergency where responders are likely to enter. Where should I post the NFPA Hazard Diamond, and how many should be used? The system addresses the health, flammability, instability, and special hazards presented from short-term, acute exposures that could occur as a result of a fire, spill, or similar emergency. The NFPA 704 Diamond, commonly referred to as the NFPA Hazard Diamond, provides a system for identifying the specific hazards of a material and the severity of the hazard that would occur during an emergency response. ![]() Diversity Engagement & Community Outreach.McGrath Institute for Jesuit Catholic Education.McCarthy Center for Public Service & the Common Good ![]()
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