Gap test

If new energetic materials are synthesized in a research laboratory and are sent to other institutes for further analysis, various stability tests have to be carried out, so that the materials can initially be classified (IHC, interim hazard classification) as being at least hazard class 1.1 D (see Ch. 6.1). The requirements to pass the [Pg.125]

UN 3a impact sensitivity 5 tests positive, if 50 % of the tests give positive results 3.5 J [Pg.125]

UN 3b friction sensitivity 5 tests positive, if one out of five test is positive 184 N, visible sparks, visible flames, explosion heard, clear crackling noise [Pg.125]

UN 3c thermal stability 75 °C, 48 h visible examination - color change, - explosion, - ignition (burning) [Pg.125]

UN 3d small-scale-burning test (see Fig. 6.13) sawdust soaked in kerosene, not confined explosion or detonation [Pg.125]

Reactivity (instability) information Acceleration rate calorimetry Differential thermal analysis (DTA) Impact test Thermal stability Lead block test Explosion propagation with detonation Drop weight test Thermal decomposition test Influence test Self-acceleration temperature Card gap test (under confinement) JANAE Critical diameter Pyrophoricity... [Pg.4]

Effect of Interstitial Gas Pressure on the Small-Scale Gap-Test... [Pg.14]

Card Gap Test. Results are given on NMe and mixts of NMe with TeNMe. A mixt having a slightly neg OB gave the highest value of 75 cards (Ref 35), Another gap test is given in Ref 22 with a donor charge of 50g of PETN/Mn 95/5 the max gap for deton transfer was found to be 3mm... [Pg.88]

An 87 13 mixt with benz gave a Trauzl test of 134% of TNT (Ref 26). Mixts of from 65 to 90% by wt in benz had a card gap test of over 300 cards, indicating them to be very sens (Ref 36). The sensy of mixts with benz was found to be due to the formation and collapse of cavitation bubbles in the liq (Ref 43) Ethylene Glycol. A 50% soln by wt had a card gap test of 270 cards (Ref 36)... [Pg.102]

A mixt contg 40% TeNMe had a card gap test of 75 cards (Ref 36)... [Pg.102]

Detonation Rate, For both mixts at 0°, 6900m/sec BurMines Card Gap Test. For both mixts, over 2000 mils... [Pg.315]

Nomenclature Autoignition Temp, °C Gap Test, 50%, Inches Impact Sensitivity Rifle ttuiiet Impact Test Vacuum Stability Test (ml/g/48hrs 120°) Refs... [Pg.548]

Fig 11 Small Scale Gap Test (SSGT) Data for PETN (Ref 100a)... [Pg.583]

Fig 12 Effect of Interstitial Gas Pressure on the Small-Scale Gap-Test Sensitivity of High Specific Surface PETN (Ref 96)... [Pg.584]

Dobratz(Ref 13) summarizes other Pentolite properties as follows Detonation Velocity (D) = 7470m/sec at d 1.67g/cc, and AD/AT = -0.4 x 10-3 (mm/microsec °C) Small scale LASL gap test (50% thickness for brass spacers), 105—140... [Pg.612]

Pentolite at d 1.56g/cc is used as the standard donor charge in the NOL Large Scale Gap Test" (Ref 10)... [Pg.613]

Card Gap Test. Freeze dried UFAP, 0 cards jet milled UFAP, 0-4 cards and slurry ground UFAP, 8-10 cards (Ref 48, p 56)... [Pg.626]

Gap test. 23cm vs 22cm for Tetryl impact sensitivity. 5kg wt 50% explns obtained with a fall of 80cm comparable to Tetryl Sensitivity to initiation. Comparable to that of Tetryl... [Pg.714]

Propagation Tests. See under Gap Tests in Vol 6, G13-R and Influence Tests in Vol 7, I98-R to I100-R... [Pg.874]

IPN gave a ERDE gap test (Scale III) of 16 cards at ambient temp. A value of over 27 cards is indicative of positive sensy to the rifle bullet test. Refs as to gap sensy include ethylene oxide (10 cards), Nitromethane (24 cards) and ethyl nitrate (43 cards)... [Pg.965]

Self-acceleration temperature Card gap test (under confinement) lANAF... [Pg.2]

There are, in general, two types of detonation tests [10,22,24]. In one type of test, the propagation of a detonation shock wave is determined. Examples of methods for this test are the BAM 50/60 test [139], the TNO 50/70 steel tube test [120], and the USA GAP test for solids and liquids [140,141]. [Pg.78]

Cachia, G. P. und Withebread, E. G. The Initiation of Explosives by Shock, Proc. Roy. Soc. A 246, 268-273 (1958). Card-Gap Test for Shock Sensitivity of Liquid Monopropellant, Test Nr. 1, Recommended by the JANAF Panel on Liquid Monopropellant Test Methods, March 1960 Amster, A. B., Noonan, E. C. und Bryan, G. J. Solid Propellant Detonability, ARS-Journal 30, 960-964 (1960)... [Pg.93]

Price, D. und Jaffe, J. Large Scale Gap Test Interpretation of Results for Propellants, ARS-Journal 31, 595-599 (1961)... [Pg.93]

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