Print Email Facebook Twitter Assessment of stability of propellants and safe lifetimes Title Assessment of stability of propellants and safe lifetimes Author de Klerk, W.P.C. Publication year 2015 Abstract The surveillance of gun propellants is basically performed either by an investigation into the thermal behavior of the propellant or by the determination of its remaining effective stabilizer content. Over the years it is shown that the surveillance of NC based gun propellants is necessary. NC based materials are intrinsically unstable, and can cause many accidents. Some accidents were caused by old unstable material, other ones were initiated by the extreme conditions during storage, like during expeditionary operations of military forces. And in quite a few cases it was a combination of these. Surveillance tests have changed over the years, and the last philosophy is to test the propellants as close as possible in comparison to the way they are stored  for this way of testing the Heat Flow Calorimetry (or microcalorimetry) method is the optimum. Older methods like the Abel heat test, Methyl Violet Test, Bergman-Junk stability test, are test methods an analysis of the current status, without or very limited prediction behavior. Besides that the temperatures are relatively high, the measuring value is quite strongly dependent of the observer/operator. In general these tests are applied for propellants and sometimes explosives, although the general application worldwide (as far they are in use by countries) is propellants. Subject Observation, Weapon & Protection SystemsEM - Energetic MaterialsTS - Technical SciencesExplosivesPropellantsStabilityLifetimeTest methodsStabilizersLifetimePropellantStabilityStabilizerTest methodsAccidentsCalorimetersConvergence of numerical methodsExplosivesMonitoringStabilizers (agents)Extreme conditionsGeneral applicationsHeat flow calorimetrySurveillance testsTest methodThermal behaviorsUnstable materialsTesting To reference this document use: http://resolver.tudelft.nl/uuid:5dbc4b28-4282-4d79-a133-883386987c31 DOI https://doi.org/10.1002/prep.201500040 TNO identifier 526465 Publisher Wiley-VCH Verlag ISSN 0721-3115 Source Propellants, Explosives, Pyrotechnics, 40 (3), 388-393 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.