IP 49: Bitumen and bituminous binders - determination of needle penetration

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  • Method adopted/last revised: 2016
  • Method reapproved: None
  • Status: New
  • First printed in STM books: March 2016


This European Standard specifies a method for determining the consistency of bitumen and bituminous binders. Normal procedure is described for penetrations up to (330 × 0,1) mm, but for penetrations above this value, up to (500 × 0,1) mm, different operating parameters are necessary.

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