Shock-pass-heat-filter

Univ of Utah, and recorded photographically on some frames of sequence of the "shock pass-heat filter (SPHF) initiation 2-inch diam Comp B. A similar phenomenon was observed in 1956 by Cosner Sewell and described in conf rept (Ref 1) which was not used as a source of information Refs 1) L.N. Cosner R.G.S. Sewell,... [Pg.143]

Shock-Pass-Heat-Filter (SPHF) Sensitivity Test. This test developed by Cook et al is described in Ref 36, p 83 and in Ref 40... [Pg.307]

Fig 1. General setup for shock-pass heat-filter (SPHF) initiation of explosives... [Pg.316]

Detonotion, Flash-Across, Heat Pulse and Hypervelocity Phenomena. According to Cook (Ref 3), the phenomenon of heat pulse was first recognized by Dr W.S. McKewan of NOTS, China Lake, Calif while viewing microsecond, color, framing photographs of Nitromethane (NM) detonated thru SPHF (shock-pass-heat-filter) glass plates in experiments conducted by D.H. Pack,... [Pg.348]

Booster-Gap Explosive Sensitivity Test of Cole Edwards, described in detail in USP 2832213(1958) (Ref 17). It was claimed to be more reliable and less ex. pensive than the card test (See after "card-gap test") and the three-legged table test, described here after "shock-pass-heat-filter test . The "booster-gap test serves for evaluating shock sensitivity of liquid explosives. It includes a set of snug-fitting telescopic cardboard tubes (ca 1 inch diam) and a cylindrical wooden block for holding the electric blasting cap, Tetryl booster pellet, circular spacer cards, and the cup with liquid explosive (to test) fit compactly in the cardboard tubes when... [Pg.398]

O. Murata, JlndExplSocJapan 17, 102-11 (1956) 8 CA 50, 17454(1956) (Deton by influence) 16) G.R. McVey St V.M. Boyle, "Sympathetic Detonation in Composition B Induced by Air Shock from Pentolite and from Composition B , BRL Rept 1048(1956) 16a) PATR 2510(1958), p Ger 52 (Four-cartridge test) 17) J.B. Cole, G.D. Edwards St T.K. Rice, USP 2832213(1958) (Booster-gap explosive sensitivity test claimed to give more reliable results than the "card and "three-legged table tests) 18) Cook (1958), 189-90 (Designation of "donor St "receptor and "shock-pass-heat-filter method) 194-97 (Deton by influence - testing by air-gap method and a brief discussion on testing thru gap filled with water, mud or solids some theoretical discussion on deton by influence) ... [Pg.400]

I960) (Promotion of shock initiation by metallic surfaces) 26) Dunkle s Syllabus (1960-1961), p 13-a, 2nd paragraph (Discussion on the work of Eichelberger Sultanoff on sympathetic detonation, listed here as Ref 20) p 13a, last paragraph [Discussion on the works of Cook et al on sympathetic detons, listed here as Ref 19-They called the barrier betw "donor and "receptor a "shock-pass-heat-filter ... [Pg.401]

M.A. Cook et al, 7thSympCombustn(1959), pp 820-36 (Shock-pass-heat-filter test)... [Pg.401]

Accdg to Dunkle (Ref 12), when a detonation encounters an SPHF ( shock-pass-heat-filter ), [described in Ref 40 under DETONATION (AND EXPLOSION), EXPERIMENTAL PROCEDURES and briefly in the book of Cook (Ref 6, p 83)], a barrier which stops the heat wave but lets the shock wave pass thru, a predetonation regime builds up again behind the shock,... [Pg.482]

Detonation, Shock Pass-Heat-Filter (SPHF) in Investigation of. See Ref 40 under DETONATION (AND EXPLOSION), EXPERIMENTAL PROCEDURES and in the following refs ... [Pg.519]

Detonation Waves, Studying Its Interruption and Reformation by the Shock—Pass- Heat-Filter Method. See Shock-Pass-Heat—Filter (SPHF) Sensitivity Test under Detonation (and Explosion) by Influence or Sympathetic Detonation, p D399... [Pg.715]

Shock-Pass-Heat-Filter (SPHF) Sensitiviry Test (Vbl 4, p D316 with Fig 1 and p DJ99-1) Small Scale Gap Test (SSGT) (Vol 4, p D343-R D344 with Fig 35)... [Pg.306]

SPHF. Acronym for shock-pass-heat filter method for studying deflagration-to-detonation transitions. It is based on the fact that thin plates of inert material (steel, glass) are able to interrupt a detonation wave and convert it to a deflagration, thus requiring detonation to be reformed from deflagration on the opposite side of the plate if detonation is to continue beyond the plate... [Pg.425]

Shimose = picric acid (Japan) 256 shock pass heat filter 89 shock wave 3 80ff. 285 Shoeiyaku = PETN (Japan) 253 Shotoyaku = An/TNT 50/50 (Japan) Shouyaku-koshitsu = plastizised RDX... [Pg.42]

Four-Cartridge Test (p D399-L) Shock-Pass-Heat-Filter SPHF) Sensitivity Test (p D399-L St D399-R) ... [Pg.655]

Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...