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The Trauzl lead block test, also called the Trauzl test or just Trauzl, is a test used to measure the strength of explosive materials. It was developed by Isidor Trauzl in 1885. The test is performed by loading a 10-gram foil-wrapped sample of the explosive into a hole drilled into a lead block with specific dimensions. The hole is then topped up with sand, and the sample is detonated electrically. After detonation, the volume increase of the cavity is measured. The result, given in cm3, is called the Trauzl number of the explosive. The Trauzl test is not useful for some modern higher-powered explosives as their power often cracks or otherwise ruptures the lead block, leaving no hole to measure. A variant of the test uses an aluminium block to avoid exposure of participants to lead-related hazards. ==Examples== Explosive power of chemical explosives by Trauzl number: 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Trauzl lead block test」の詳細全文を読む スポンサード リンク
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