#transportationclassificationtesting

[sigmahse]

Air Over Layer is conducted primarily for the purposes of transportation. Mixtures of a reference oxidiser (potassium bromate) / cellulose (fuel) and mixtures of the substance and cellulose (fuel) to be tested are prepared in specified ratios. Using a conical funnel the mixtures are formed into a truncated conical pile, covering a looped ignition wire resting on the low heat conducting plate.

[sigmahse]

Flammability of Solids (Burning Rate) test is conducted primarily for the purposes of transportation.

The test is conducted primarily for the purposes of transportation. A powder strip is formed using a triangular cross sectioned mould, onto a heat resistant, non-porous plate. Using a butane flame, one end of the strip is ignited and the initially the time taken to burn over a marked 200 mm length is recorded.