Cochin laboratory

BURNING TEST (P 5, D 187, IP 10)

Kerosene can vary widely in its burning quality as measured by carbon deposition, smoke formation, and flame radiation. This is a function of hydrocarbon composition. The burning test covers the qualitative determination of the burning properties of kerosene to be used for illuminating purposes such as kerosene oil used in lamps, domestic cookers, railway signal lamps, etc.

BROMINE NUMBER (D 1159, IP 130, ISO 3839)

Bromine Number is the grams of bromine that will react with 100 g of the sample under the test conditions. It is used as a measure of aliphatic unsaturation in petroleum samples, and as percentage of olefins in petroleum distillates boiling up to approximately 315°C. The magnitude of bromine number is an indication of the quantity of bromine- reactive constituents, not an identification of constituents. Usually fuel oil containing unsaturated hydrocarbons has a greater tendency to form sediment on aging than the straight-run fuel oils.