About FM

Contributing to Fire Safety in Semiconductor Factories
(FM 4910 listed Plates)

About FM 4910 Standard

The FM 4910 standard is a flame-retardation standard for clean room materials (effective as of October 1997)
established by the U.S. non-life insurance company FM Global with the aim of preventing fire.

Fire Propagation Index

Value that determines the level of fire propagation in case of fire.
(FPI: Fire Propagation Index)≦6

Smoke Damage Index

Value that determines the level of pollution caused by smoke
(SDI: Smoke Damage Index)≦0.4

The standard value for each index is specified in the FM 4910 standard.