What is the difference between ASTM E119 and NFPA 285 ?

ASTM E119 and NFPA 285 are both standards that are used to evaluate the fire resistance of various building assemblies. However, there are some key differences between the two.

ASTM E119 is a standard test method that is specifically designed to measure the fire resistance of building walls, floors, and roofs. It measures the ability of these assemblies to withstand exposure to fire for a specified period of time while maintaining their structural integrity. The primary goal of ASTM E119 is to ensure the safety of occupants and limit the spread of fire within a building.

On the other hand, NFPA 285 is a standard that is designed to provide guidelines for fire safety systems design and construction. It includes requirements for fire alarms, fire sprinklers, and fire suppression systems, but it does not specifically measure the fire resistance of building assemblies.

In summary, ASTM E119 is a standard that is specifically designed to measure the fire resistance of building walls, floors, and roofs, while NFPA 285 is a standard that provides guidelines for fire safety systems design and construction.