Mass explosives

Eor the purposes of safety distanees in eonneetion with the issue of lieenees for faetories and magazines, explosives have been eategorized as X - fire or slight explosion risks or both, with only loeal effeet Y - mass fire risks or moderate explosion risk, but not mass explosion risk Z - mass explosion risk with serious missile effeet ZZ - mass explosion risk with minor missile effeet. 

Group 1 Chlorate and metal perchlorate report or whistling compositions Dry non-gelatinized cellulose nitrates Barium peroxide/zirconium compositions Burn very violently Flash shells (maroons) Casings containing flash compositions Sealed hail-preventing rockets Mass explosion risk... 

Substances and articles that have a mass explosion hazard... 

Substances and articles that have a projection hazard but not a mass explosion hazard Substances and articles that have a fire hazard and either a minor blast hazard or a minor projection hazard but not a mass explosion hazard Substances and articles that present no significant hazard Very insensitive substances that have a mass explosion hazard Extremely insensitive articles which do not have a mass explosion hazard... 

Substances and articles that have a fire hazard and either a minor blast hazard or a minor projection hazard but not a mass explosion hazard 1.3... 

Substances and articles which have a mass explosion hazard. (A mass explosion is an explosion which affects almost the whole load of explosives virtually instantenously). 

Very insensitive substances having a mass explosion hazard which are so insensitive that there is very little probability of initiation or of transition from burning to detonation under normal conditions of carriage. 

Extremely insensitive articles which do not have a mass explosion hazard. The articles contain only extremely insensitive detonating substances and demonstrate a negligible probability of accidental initiation or propagation. 

Division 1.1 Explosives with a mass explosion hazard Division 1.2 Explosives with a projection hazard Division 1.3 Explosives with predominantly a fire hazard Division 1.4 Explosives with no significant blast hazard Division 1.5 Very insensitive explosives blasting agents... 

Hazard Class 1 - Division 1.1. Explosive Materials (Major hazard from these materials is mass explosion) ... 

Hazard Division 1.1 Comprises items which have a mass explosion hazard. The major hazards of this division are blast, high velocity projections and flame the explosion results in severe structural damage, the severity and range being determined by the quantity of explosives involved. There may be a risk from heavy debris propelled from the structure in which the explosion occurs or from the crater. 

Hazard Division 1.2 Comprises items which have a projection hazard with minor explosion effects but not a mass explosion hazard. Items burn and explode progressively, a few at a time. A considerable number of fragments, firebrands and unexploded items may be projected. Some of these may explode on impact and cause fire or explosion. Blast effects are limited to the immediate vicinity. 

Fire Division 4 These explosives present no significant explosion hazard but have a moderate fire hazard. The effects of fire are usually confined within the package. An external fire would not cause mass explosion of a package of such items. There could be toxic substances in them which may evolve toxic fumes on burning. These explosives belong to UN Compatibility Group K. 

DADNPh = diazodinitrophenol 94 danger d explosion en masse = mass explosion risk 210... 

Massen-Durchsatz = mass flow 46 Massen-Explosionsgefahrlichkeit Massen-Explosionsfahigkeit = mass explosion risk 210 Massenverhaltnis = mass ratio 211 MAT = mixture of TNT and picric acid (France Italy)... 

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