Testing Sample of Variable mass Using the Ballistic Pendulum T

7 Testing sample of variable mass using the ballistic pendulum (T) 

Propagation of deflagration. (This method should not be used for substances which detonate because the apparatus may break.) 

2 Test samples 100, 200 and 300g of test sample are put in a 50mm diameter polyethylene tube and then initiated with a booster composed of a No.6 electric cap and 20g of PETN in a 30mm diameter polyethylene tube, lkg of sand cartridge is inserted behind the test sample to better confine it and the mortar is set in a position close to the pendulum. (The distance between mortar and pendulum should be 15 mm.) 

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