IP 601: Petroleum products – Determination of boiling range distribution by gas chromatography method – Part 4: Light fractions of crude oil

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  • Method adopted/last revised: June 2022
  • Method reapproved: None
  • Status: Current
  • First printed in STM books: 2016


This document specifies a method for the determination of the boiling range distribution of petroleum products by capillary gas chromatography using flame ionization detection. This document is applicable to stabilized crude oils and for the boiling range distribution and the recovery up to and including n-nonane. A stabilized crude oil is defined as having a Reid Vapour Pressure equivalent to or less than 82,7 kPa as determined by IP 481 [3].

Annex C specifies an algorithm for merging the boiling point distribution results obtained using this method with the results obtained with EN 15199-3. This will result in a boiling range distribution and recovery up to C120.

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