Permissible explosives

Nobelita Antigrisu Gelatinizada (Span). See under Spanish Permissible Explosives in Vol 3, C455-L... [Pg.351]

Pobedity. See under Coal Mining Explosives, Russian Permissible Explosives, in Vol 3, C454-R... [Pg.792]

It will, therefore, be seen that the best and safest practice is to use in each situation in the coal mine an explosive which is best adapted for the operation in hand. The use of unnecessarily weak explosives, even though apparently safer in some tests, is often a disadvantage and can be dangerous. These considerations have led to the development of a series of types of explosives suited for particular purposes in coal mines and subjected to tests relevant to their individual uses. Thus, in Britain there are now five classes of permitted explosives. In Germany there are three classes. In the U.S.A. geological conditions are different and the hazards are less than in Europe, and it has been possible to work throughout with the strongest types of permissible explosives. [Pg.78]

Permissible Explosive. The American equivalent to British Permitted Explosive. [Pg.200]

Galleries for Testing Permissible Explosives. Several refs are given in Vol 1, p XIV. European galleries and US galleries at Bruceton,... [Pg.303]

Permissibility of Coal Mining Explosives, Tests for. See under Galleries for Testing Permissible Explosives... [Pg.306]

Ballistic Pendulum and Ballistic Mortar Tests (86-92) Ballistic Pendulum of Schmidt (93) Steel Plate Test (94) Detonation by Influence (95-6) Gallery Test for Permissible Explosives (97-8) and Examination of Flames (98-100)... [Pg.326]

Detonation Wave Behavior in Permissible Explosives. See Ref 46, listed on p D726... [Pg.683]

N. E. Hanna et al, US Bur Mines RJ No 5463 (1959) CA 53, 14517 (1959). The effect of 0, 3.6, 6.6 9.5% NaCl on the incendivity of permissible explosives was studied by the Bruceton up-and-down technique in gallery tests. The study showed that the addn of relatively small quantities of NaCl tends to reduce but does not eliminate ig-... [Pg.286]

Requirements for Italian permissible explosives are given by Belgrano (Ref 31, pp 327—29), while tests are described on pp 329—32... [Pg.406]

Antifiredamp Explosives or Permissible Explosives). See under Esplosivi da mina, Tables II IV and under DINAMITI, Item f. Also Grisounite and Grisoutina... [Pg.421]

Many Italian Mining Explosives are listed under COMMERCIAL OR INDUSTRIAL EXPLOSIVES in Ref 24, Vol 3, on pp C438-R to C440-R (Nonpermissible Explosives) and on pp C451-L R and C454-L (Permissible Explosives). Some of them are listed in this section... [Pg.422]

Corresponding explosives are known in Belgium as explosifs SCP (securite-grisou-poussiere), and in the USA as permissible explosives. In Great Britain they are called permitted explosives, and are to be distinguished from authorized explosives which... [Pg.233]

Explosion, Temperature Developed on. Calculation far Permissible Explosives. See Vol 3, pp C445-R to C449-R... [Pg.260]

Anon, "Active List of Permissible Explosives and Blasting Agents Approved Before December 1, 1967 , BurMines Information Circular 8371, April 1968, US Dept of the Interior, 4800 Forbes Ave, Pittsburgh,... [Pg.341]

P.A. Richardson C.M. Mason, "Active List of Permissible Explosives and Blasting Devices Approved Before July 1, 1970, Bur-Mines Information Circular 8493, Oct 1970. Reviewed by G. Cohn, Edit in Expls Pyrots 4(1), 1971. (The list of permissible explosives includes 76 brands of which 11 are gelatinous. The list of permissible blasting devices comprises five Cordox models)... [Pg.341]

Firedamp-proof Explosives. Same as Permissible Explosives, described under the same Refs as listed under Firedamp Dynamite... [Pg.412]

Many of the materials used for flash reduction are also used in Permissible Explosives, suggesting that (he two problems may be closely related... [Pg.479]

Permissible Explosives in LISA) or "Per-DiirtCu Explosives in 0 3t Britsin (P, f XT p... [Pg.578]

Note "Improved Gap Sensitivity Test for Permissible Explosives was reported by... [Pg.655]

Gelatin-Dynamite (Japanese). See under Permissible Explosives in Vol. 3, p C454-L... [Pg.691]

Sometimes, as in the case of Permissible Explosives, it is undesirable to grind the ingredients too fine, as such grinding increases the density of the product and seems to increase the tendency to ignite firedamp when... [Pg.786]

Civil explosives are further sub-divided into permitted or permissible explosives and non-permitted explosives. Two types of civil explosives namely ammonium nitrate-fuel oil (ANFO) and emulsion explosives dominate the rock blasting scene in the USA. [Pg.10]

A permitted or permissible explosive is one that has been allowed for use in gas- or dust-filled coal mines. These explosives produce strong detonation but... [Pg.10]

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