NFPA 555-2021 PDF Download

The NFPA 555-2021 standard provides fire protection engineers and AHJs with methods to assess the risk of room flashover during a fire. This standard aims to ensure life safety and protect property by helping professionals evaluate the potential for full fire involvement in enclosed spaces.

The 2021 edition of NFPA 555 introduces various updates and improvements. These include the incorporation of new data from recent studies, which enhance the current evaluation methods. The standard now includes an additional test method for low heat release materials, allowing for a more comprehensive assessment of fire risks. It also expands the range of fire scenarios to consider in tightly closed compartments. Furthermore, the 2021 edition provides new definitions to clarify concepts and considerations for potential hazards, such as identifying additional fire spread mechanisms and fuel loads that contribute to the fire.