IP 299: Determination of bromine index - Electrometric titration method

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  • Method adopted/last revised: 2003
  • Method reapproved: None
  • REF/ISBN: IP299-2935231
  • Status: Current
  • First printed in STM books: January 2003

Scope

This standard specifies a method for the determination of the bromine index of distillate liquid petroleum products which are substantially free from olefins and material lighter than 2-methylpropane and have a distillation end point, by IP 123, of lower than 288 °C. The standard gives an indication of the presence of trace amounts of unsaturates in these materials and is applicable to materials that have a bromine index below 1 000. Petroleum distillate materials with a bromine index above 1 000 should be tested by the procedures described in IP 130. Industrial aromatic hydrocarbons should be tested by ASTM D 1492.

NOTE 1 - The procedure has been co-operatively tested on materials with bromine indices in the range 100 to 1 000. These include straight-run and hydrocracked naphtha, reformer feed, kerosine and aviation turbine fuels.

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