MIL-STD-2105 Hazard Assessment Tests For Non-Nuclear MunitionsThis standard provides or references tests and test procedures for the assessment of safety and insensitive munitions IM characteristics for all non-nuclear munitions, munition subsystems and explosive devices.

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MIL-STD-2105D

d.  Type IV (Deflagration reaction).  The fourth most violent type of munition reaction with ignition and burning of confined energetic materials which leads to a less violent pressure release.

Primary evidence of a Type IV reaction is the combustion of some or all of the energetic material and the rupture of casings resulting in a few large pieces that might include enclosures and attachments.  At least one piece (e.g., casing, packaging, or energetic material) travels (or would have been capable of travelling) beyond 15m and with an energy level greater than 20J based on the distance versus mass relationships in figure 1.  A reaction is also classified as Type IV if there is no primary evidence of a more severe reaction and there is evidence of thrust capable of propelling the munition beyond

15m.

Secondary evidence may include a longer reaction time than would be expected in a Type III reaction; significant scattered burning or unburned energetic material, generally beyond 15m; and some evidence of pressure in the test arena which may vary in time or space.

e.  Type V (Burning reaction).  The fifth most violent type of munition reaction where the energetic material ignites and burns nonpropulsively.

Primary evidence of a Type V reaction is the low pressure burn of some or all of the energetic material.  The casing may rupture resulting in a few large pieces that might include enclosures and attachments.  No piece (e.g., casing, packaging, or energetic material) travels (or would have been capable of travelling) beyond 15m and with an energy level greater than 20J based on the distance versus mass relationships in figure 1.  There is no evidence of thrust capable of

propelling the munition beyond 15m.  A small amount of burning or unburned energetic material relative to the total amount in the munition may be scattered, generally within 15m but no more than 30m.

Secondary evidence may include some evidence of insignificant pressure in the test arena and for a rocket motor a significantly longer reaction time than if initiated in its design mode.

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