IP 376: Determination of needle penetration of petroleum wax

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  • Method adopted/last revised: 1986
  • Method reapproved: 2004
  • REF/ISBN: IP376-2934869
  • Status: Current
  • First printed in STM books: January 1986


This method of text is intended for use in measuring with a penetrometer the extent of penetration of a petroleum wax by a standard needle as an empirical measure of hardness and consistency.

NOTE 1: This procedure is applicable to petroleum waxes having penetration of not greater than 250.

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