This report is explain the test results of aerosol-type fire extinguishers. The object of this test is to determine whither the products described in this report comply with the stan-dards and present the problems from the results.

This report is announced about test results of manually actuated signaling boxes(manual call points) and audible signal appliances (alarm bell), so as to occupants, inhabitants or persons di-rectly concerned with the implementation and direction of emergency action initialation is the area protected. The testing plan was progressed devided by three testing items, external appearance inspec-tion, performance test and environment proof test. The purpose of this report is to analyze the characteristics of products.

This report is explained about operating principles, characteristices of flame detectors. Flame detector is designed to detect the UV (Ultraviolet) and IR (Infrared) rediation produced by flaming involving carbonaceous materials.

As the progress in electronic industry is very rapid, various materials are used in this area and it is very difficult to find the hazard of those materials. Also expensive equipments are concentrated and flammable liguids or toxic gases are used in the procsses, the possibility of loss in the fire is very high. So it is very important to analyze various risks and take the proper measures.

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