IP 441: Determination of the pour point of crude petroleum

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  • Method adopted/last revised: 2017
  • Method reapproved: None
  • REF/ISBN: IP441-2938621
  • Status: Current
  • First printed in STM books: April 2018


This standard specifies two procedures for the
determination of the pour point of crude petroleum
down to a temperature of –36 °C. One procedure
(Procedure A) provides a measure of the maximum
(upper) pour point, whilst the other procedure
(Procedure B) provides a measure of the minimum
(lower) pour point. This standard is only applicable
to crude petroleum; the pour point of petroleum
products should be measured by IP 15.

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