Look
![small explosion-test bunker](../equipment_images/smallpit_s.jpg)
Small outdoor explosion-test bunker
Specifications
- Small round bunker of 2.5m diameter
- Explosion tests of around 200g explosive and autoignition or runaway-reaction tests
Explanation
- Experiments using around 200g of explosives can be carried out.
- It is also possible to carry out experiments where the explosive may fail to detonate.
- Exhaust is processed in a scrubber system.
- Measurements using electrical sensors and high speed video recordings are possible.
Test example 1: auto-ignition test of 100g firework composition
![measurement example](../equipment_images/smallpit_ex1-s1.jpg)
![measurement example](../equipment_images/smallpit_ex1-s2.jpg)
At the beginning of the test Transition from deflagration to explostion (after 9h at 60°C)
Test example 2: mixing hazard
Immediately after mixing waste water containing ammonia with an aqueous solution of sodium chlorite, explosive nitrogen trichloride forms and detonates.
![measurement example](../equipment_images/smallpit_ex2-s1.jpg)
![measurement example](../equipment_images/smallpit_ex2-s2.jpg)
Location(Admin.)
AIST Tsukuba Central 5 (ESRG)