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ISO 10927:2018

Plastics — Determination of the molecular mass and molecular mass distribution of polymer species by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS)

Publication date:   Jun 5, 2018

General information

90.93 Standard confirmed   Jun 7, 2023

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 general method for determining the average molecular mass and molecular mass distribution of polymers (see Reference [1]) from 2 000 g ⋅ mol−1 to 20 000 g ⋅ mol−1 by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS).
The average molecular masses and molecular mass distributions are calculated from a calibration curve constructed using synthetic-polymer and/or biopolymer standards. This method is therefore classified as a relative method.
The method is not applicable to polyolefins or to polymers with a polydispersity >1,2.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 10927:2011

NOW

PUBLISHED
ISO 10927:2018
90.93 Standard confirmed
Jun 7, 2023