Abstract
The paper presents the results of the theoretical and practical research on the development of the technical and methodological infrastructure for assessing the safety parameter regarding the sensitivity to impact of explosives for civil use in order to increase the degree of security in their handling and use. The currently used method for determining the sensitivity to impact is based on the provisions of harmonized European Standard SR EN 13631-4. Expression of the results implies a particular experience of the research team, the conclusion of the test being in the form of a qualitative response reaction/non reaction to different energies (J) applied to the explosive samples, based on observed effects such as: smoke, explosion noise, flame / spark with or without combustion traces on the subassembly of the specialized test equipment. In order to carry out in good conditions the installation, use and maintenance of the specialized equipment for assessing the susceptibility of the tested substances to impact stimuli, the working procedure of the Department of Explosives and Pyrotechnic Products was elaborated and implemented, PL-04 working procedure with the designation “Working procedure for the installation, use and maintenance of BFH-12A type equipment designed to assess the sensitivity of test substances to impact stimuli”.
Highlights
Explosives are chemical compounds - substances or mixtures of substances that have a large amount of energy and which, under the influence of external action, break down suddenly, violently with heat release and gas formation capable of generating mechanical work
Prior to use, explosives are subject to different laboratory tests to ensure compliance with the essential safety requirements applicable to each type and to match the ballistic / physic-chemical / thermodynamic parameters within specified manufacturer specific explosive ranges
In order to evaluate all the parameters characterizing the explosives, there are different methods of verification / determination, most of them being standardized at European / national level, if we refer to the context in which INCD INSEMEX Petroşani is integrated [3]
Summary
Explosives are chemical compounds - substances or mixtures of substances that have a large amount of energy and which, under the influence of external action, break down suddenly, violently with heat release and gas formation capable of generating mechanical work. Throughout the course of the explosives, having as their starting point manufacturing and end-use by the operator (authorized craftsman), these products may be / are subjected to various demands (friction or impact) that may endanger the life and health of persons and can destroy material goods, affect the environment etc. On this basis, the explosives must have a certain resistance to the demands arising from the handling, storage, loading into the holes and the transport [2]. The scope of the test method is within the range of -30 ÷ +80 C, so no particular environmental conditions are required
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