IP 614: Liquefied petroleum gases - Determination of dissolved residue - Gas chromatographic method using liquid, on-column injection

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  • Method adopted/last revised: 2014
  • Method reapproved: None
  • REF/ISBN: IP614-2936900
  • Status: New
  • First printed in STM books: April 2014


This European Standard specifies a method for the determination of the dissolved residual matter, also known as evaporation residue, in liquefied petroleum gases (LPG), by gas chromatography in the range of (10 to 600) mg/kg (ppm mass).

This test method quantifies soluble organic compounds (hydrocarbon materials), sometimes called ‘evaporation residue’, which can be present in liquefied petroleum gases and which are substantially less volatile than the LPG product, i.e. with a boiling point between 174 °C and 522 °C (C10 to C40). Higher boiling materials, or materials that adhere permanently to the chromatographic column, will not be detected.

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