Approved Work Item
ISO/AWI 1628-3
Plastics — Determination of the viscosity of polymers in dilute solution using capillary viscometers — Part 3: Polyethylenes and polypropylenes
Reference number
ISO/AWI 1628-3
Edition 4
© ISO 2024
Approved Work Item
Under development
A working group has prepared a draft.
Will replace ISO 1628-3:2010

Abstract

ISO 1628-3:2010 defines particular conditions for determining the reduced viscosity (also known as viscosity number) and intrinsic viscosity of polyethylenes and polypropylenes at 135 °C in dilute solution.

The viscosity of polymer solutions may be affected by additives present in the sample. The value of a reduced viscosity determined by this method may therefore be unreliable if the sample contains fillers or other additives.

General information

  • Status
     : Under development
    Stage
    : New project registered in TC/SC work programme [20.00]
  • Edition
     : 4
  • Technical Committee :
    ISO/TC 61/SC 9
  • RSS updates

Life cycle

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