| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for analyzing recovered powder-type fire extinguishing chemical or accurately analyzing recovered powder-type fire extinguishing chemicals with an easy procedure free from error. SOLUTION: Powder-type fire extinguishing chemicals having a mass equal to or less than a mass X=(W1/Z)×100 are recovered from fire extinguishing chemicals included in fire extinguishers of n (n is an integer greater than 1), and analyzed using the above-described method. In the equation, W1 denotes a total mass of fire extinguishing chemicals included in one fire extinguisher, and Z denotes a percentage of a minimum mixed amount of sodium bicarbonate having a sufficiently reliable analyzing accuracy according to an analyzing means. A X-ray diffraction analyzer is used as the analyzing means, for example. W1, Z, and X can be respectively set to 3 kg, 0.5%, and 600 kg. COPYRIGHT: (C)2003,JPO
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