IP 427: Liquefied petroleum gases - Determination of oily residues - High-temperature method

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  • Method adopted/last revised: 1997
  • Method reapproved: 2004
  • REF/ISBN: IP427-2934869
  • Status: Current
  • First printed in STM books: January 1997


This International Standard specifies a method for the determination of the residual matter in liquefied petroleum gases (LPG) that remains after evaporation at 105°C. This material, termed "oily residues", represents those products that are deposited in vaporizers that are subject to a heat input greater than that of ambient evaporation.

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