Steel Tube Test according to Fire Services Law Q

3 50/60 steel tube test according to Fire Services Law(Q ) 

The classification test for Class 1 dangerous oxidizing solids 

The purpose of the test is to determine the detonation or deflagration hazards of solid materials with combustible materials. A mixture of the test sample and a combustible material is put into the steel tube and ignited. The extent of cracking of the steel tube is observed. 

Cellulose powder of particles with a diameter of less than 53 p. mfabout 280 mesh) is used as the combustible material. The powder must be stored more than 24 hours in a desiccator containing silica gel under a constant temperature. 

Generally commercial products are used as test samples. If a product is composed of rod-shaped particle, it can not be put into a steel tube it must be divided into smaller pieces. 

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