Hot storage tests

Holzkohle = charcoal 3 Homocyclonite = HMX = Octogen 134 207 208 239 255 329 hot spots 178 hot storage tests 179 HOX = high oxygen explosive 34 Hoxonit = plastic explosive consisting of RDX, nitroglycerine and nitrocellulose (swiss)... 

W I W II W III = permitted explosives belonging to the german safety classes I, II and III 370 warm storage tests Warmlagerteste > hot storage tests 179 Wasacord = detonating fuse (german) 367... 

A distinction must be made between chemical and physical stability. While physical stability is important, particularly in the evaluation of solid propellants, the chemical stability is of prime importance in the estimation of the course of decomposition of nitrate esters. The nitrate esters which are processed for use as propellants - unlike nitro compounds, which are relatively stable under these conditions - undergo a steady decomposition, which is due to imperfect purification of the starting materials and to the effect of other parameters such as temperature and air humidity. The rate of this decomposition is auto-catalyzed by the acidic decomposition products and may in certain cases produce spontaneous ignition. In order to reduce the decomposition rate as much as possible, suitable stabilizers are added to the powders, which are capable of accepting the acid cleavage products with formation of the corresponding nitro compounds (- Stabilizers). The stability is controlled by means of several tests (- Hot Storage Tests). 

The eye lot rime thylenetrinltramine is not attacked by either boiling water nor by hot dilute acids and exhibits when subjected to the usual hot storage tests even at unusually high temperatures quite a remarkable stability. 

Further properties which a detonating fuse should have are the ability to initiate blasting explosives (tested with suitable relatively insensitive mixtures usually of TNT and ammonium nitrate) resistance to low temperatures without cracking on flexing and to hot storage without desensitisation and toughness to prevent damage from stones, etc. The fuse must always be waterproof and must often withstand diesel oil, which can separate from ANFO. 

Hygroscopicity test, hot-bench, specific storage tests... 

If tested hot, presumably immediate and permanent effects would be additive. Exposure to elevated temperature for extended periods has immediate and permanent effects and must be considered in the design of stmctures such as chemical storage tanks. 

The filled oven test pallets are loaded into a hot air oven and the munitions are heated to 210 F and then maintained at that temperature for 15 minutes. The munitions are then returned to the UP plant for leak inspection, palletization and storage or transfer to an ammunition loading plant. 

Also, long-term isothermal storage (or low heating rate) tests are used to investigate autocatalytic effects. For example, a sample is held above 100°C for 10 hours to simulate drying operations [137]. In layer tests, the substance layer is heated by hot air passing around it with a fixed velocity. 

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