IP 596: Petroleum products - Determination of distillation characteristics of petroleum products - Micro distillation method

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  • Method adopted/last revised: 2017
  • Method reapproved: None
  • REF/ISBN: IP596-2938621
  • Status: Current
  • First printed in STM books: April 2018


This test method specifies a procedure for determination of the distillation characteristics of petroleum products having boiling range between 20 °C to 400 °C at atmospheric pressure using an automatic micro distillation apparatus. The measurement is made on a small test portion.

WARNING — The use of this Standard may involve hazardous materials, operations and equipment. This Standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this Standard to establish appropriate safety, health and environmental practices and to determine the applicability of regulatory limitations prior to use.

This test method is applicable to such products as: light and middle distillates; automotive spark ignition engine fuels; automotive spark-ignition
engine fuels containing up to 20 % ethanol; aviation gasolines; aviation turbine fuels; regular and low sulfur diesel fuels; FAME (B100) biodiesel
blends up to 30 % biodiesel; special petroleum spirits; naphtha’s; white spirits; kerosene’s; burner fuels, and marine fuels.

The test method is also applicable to hydrocarbons with a narrow boiling range, such as organic solvents or oxygenated compounds.

The test method is not applicable to products containing appreciable quantities of residual material.

NOTE Vapour and liquid temperature are converted by an algorithm in the automatic apparatus software in order to predict distillation temperatures that would have been obtained if the material had been tested using the IP 123 test method.

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