Trauzl lead block test
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.
Explosive power of chemical explosives by Trauzl number:
- Lepper, Bessie; F. Everett Reed; William E. Gordon (September 1955). "Lead-Block Test for Explosives". Industrial and Engineering Chemistry 47 (9): 1794–1800. doi:10.1021/ie50549a028. Retrieved 8 Aug 2011.
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