Národní úložiště šedé literatury Nalezeno 2 záznamů.  Hledání trvalo 0.01 vteřin. 
Methods of investigation of tendency to spontaneous ignition of solid materials wetted with a liquid
Hrušovský, Ivan ; Balog, Karol ; Martinka, Jozef
If a solid material of large surface area is contaminated with a liquid with a propensity to low-temperature thermal oxidation (most often oil high in unsaturated fatty acids), under certain conditions it can self-ignite. To identify the tendency to self-ignition of substances, there have been developed a number of methods, such as differential Mackey test, or recommended the use of other classical methods of thermal analysis, which however are not suited for the analysis of samples of larger volume. DTA and ARC appear to be among the best methods of thermal analysis, for the evaluation of dynamic and kinetic parameters of the process of self-heating of such samples.
Flammability of materials and forensic approach in fire investigation
Balog, Karol ; Martinka, Jozef ; Chrebet, Tomáš ; Hrušovský, Ivan ; Hirle, Siegfried
The paper deals with the application of new methods for determining the flammability of materials by fire investigation. A common cause of fires is ignition or spontaneuos ignition. Fires of liquid and solid materials have different mechanisms of initiation. Standardized laboratory tests provided flammability parameters may lead to misinterpretation initiation of fire. Use of modern methods such as conical calorimeter, safety calorimeter, thermal analysis and fire modelling are used to simulate conditions close to the fire. In terms of forensic approach using the selected methods to determined conditions for the initiation of solid materials fire.

Viz též: podobná jména autorů
2 Martinka, Jakub
2 Martinka, Jan
1 Martinka, Jiří
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