Abstract

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This document specifies a method for determining the average molecular weight and the molecular weight distribution of polymers using size-exclusion chromatography (SEC). The average molecular weight and the molecular weight distribution are calculated using a universal calibration curve instead of the conventional calibration curve.

NOTE This test method is classified as a relative method as described in ISO 16014-1, but the average molecular weights and molecular weight distributions calculated by the method are equal to, or nearly equal to, the absolute values. For details, see the Annex A.


General information 

  • Status
     :  Published
    Publication date
     : 2019-05
  • Edition
     : 3
    Number of pages
     : 10
  • Technical Committee
     : ISO/TC 61/SC 5 Physical-chemical properties
  • ICS
     :
    83.080.01 Plastics in general

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