FM4910 Approved Materials:
FM4910 is the fire retardant property standard established by Factory Mutual System, a worldwide industrial insurance organization, for materials used in clean room applications. Test criteria for the selection of materials for clean rooms are presented. The criteria deal with limiting fire propagation and limiting contamination of the clean room environment by smoke. Contamination from a fire, no matter how small, could potentially put a chip maker out of business for weeks, if not permanently. In the past, cleanrooms and wet benches needed to be protected by sprinklers or more expensive special fire-protection systems. But, by the time a cleanroom fire propagated and triggered a sprinkler or special fire protection system, damage could already have occurred in the rest of the cleanroom. Driven by rising insurance costs and potential lost earnings, chip makers are requiring suppliers to use materials in wet-bench fabrication that are less flammable and therefore don't need additionaland costlyfire protection systems installed, so they will be inherently safe when they arrive in the cleanroom.