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ISO 16014-2:2019

Plastics — Determination of average molecular weight and molecular weight distribution of polymers using size-exclusion chromatography — Part 2: Universal calibration method

Publication date:   May 15, 2019

General information

90.93   Standard confirmed   Jun 6, 2024

ISO

ISO/TC 61/SC 5 Physical-chemical properties

International Standard

83.080.01   Plastics in general

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Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 16014-2:2012

NOW

PUBLISHED
ISO 16014-2:2019
90.93 Standard confirmed
Jun 6, 2024