Fire extinguishers clean rooms

An appropriate number, type, and size of hand-held fire extinguishers should be provided throughout the building to handle ordinary combustibles and electrical fires in the control room and related areas. Typically, clean agent or carbon dioxide fire extinguishers should be provided for electrical and electronic equipment. Dry chemical extinguishers should be avoided because of equipment contamination with powder. For use on ordinary combustible fires in the associated areas water or multipurpose dry chemical fire extinguishers should be provided. 

Plant personnel reacted quickly and extinguished the fire within 10 minutes. However, smoke and water had contaminated the clean room environment where millions of chips were stored for shipment. Some 4,000 miles away, at a Nokia plant outside Helsinki, a production planner who was following a well-defined process for inbound materials failed to get a routine signal from Philips. He contacted the top component purchasing manager. 

A student needed to purify a chemical using the process of recrystallization. He needed to use a very flammable solvent but he discovered that the laboratory hood that he intended to use was cluttered with no room for his experiment unless he first cleaned it up. So he decided to carry out the recrystallization on the benchtop. As the solvent boiled he added the crystals of the compound that he wanted to purify. Suddenly the vapors ignited and a Are ensued. Luckily the fire was extinguished and the student only received minor burns. 

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