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ISO 16014-4:2019

Plastics — Determination of average molecular weight and molecular weight distribution of polymers using size-exclusion chromatography — Part 4: High-temperature method

May 15, 2019

General information

90.93     Jun 6, 2024

ISO

ISO/TC 61/SC 5

International Standard

83.080.01  

English  

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Scope

This document specifies a method for determining the average molecular weight and the molecular weight distribution of polymers by size-exclusion chromatography (SEC) using an organic eluent at temperatures between 60 °C and 220 °C (see Annex A). The average molecular weight and the molecular weight distribution are calculated from a calibration curve prepared using polymer standards. Therefore, this test method is classified as a relative method (see ISO 16014-1).

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 16014-4:2012

NOW

PUBLISHED
ISO 16014-4:2019
90.93 Standard confirmed
Jun 6, 2024