A closed pressure vessel test screen for condensed-phase explosive properties in organic materials

A closed pressure vessel test (CPVT) screen for explosive properties of energetic organic compounds

“…Data are given on the separation and reproducibility from the five participating laboratories to provide a basis for assessing the suitability of a particular laboratory's methodology. Ã From Baker and Whitmore (1998) and Whitmore and Baker (2001).…”

“…4, can be conservatively approximated as follows. Baker and Whitmore (1998) and Whitmore and Baker (2001). and upper right corner of this rectangle gives the lower rank B boundary.…”

“…In a follow-up paper (Whitmore & Baker, 2001), the above criteria were tested. In respect of ranks A and B, the criteria were validated.…”

The “Mini Closed Pressure Vessel Test (MCPVT)” as a screening or classification test for explosive properties of organic peroxides

“…Table 6 shows, for example, for peroxyesters that the ability of organic peroxides to propagate a detonation depends on the decomposition energy and the active oxygen (AO) content but also depends on the temperature at which the test was carried out. At higher temperatures the ability Table 1 Explosive rank (Whitmore & Baker, 2001) Severest property Correspondence to UN classification Explosive rank Detonates Potentially Class 1 A Deflagrates rapidly and/or violent effect of heating under Potentially Class 1 but not detonable B defined confinement Deflagrates slowly and/or medium or low effect of heating Not Class 1 C under defined confinement Does not deflagrate and no effect of heating under defined No explosive properties with respect to transport classification D confinement Table 2 Criteria MCPVT (Whitmore & Baker, 2001) Observation during MCPVT Conclusion (dp /dt) max Ն124 MPa / s Rank A 124 MPa /s Ͼ (dp /dt) max Ն15 MPa / s and T P Ͻ 167°C Rank B 124 MPa/sϾ(dp/dt) max Ն15 MPa/s and T P Ն167°C…”

“…In addition to that, screening criteria for explosivity based on measurements in a mini-autoclave and the potential use of the mini-autoclave as a screen for detonability and other Class 1 properties were proposed with the reservation, that "…, but they (factors) did militate against its (mini-autoclave) use, at least in the short run, as a screen for Division 4.1 and 5.2 properties and as a classification test" (Whitmore & Baker, 2001).…”