ISO 16014-5 FRENCH

Reference: M00001463

Condition: New product

ISO 16014-5 FRENCH 1st Edition, July 1, 2012 Plastiques - Détermination de la masse moléculaire moyenne et de la distribution des masses moléculaires de polymères par chromatographie d’exclusion stérique - Partie 5: Méthode utilisant la détection par diffusion lumineuse

More details

In stock

More info

Description / Abstract: This document specifies a general method for determining the average molecular weight and the molecular weight distribution of polymers using SEC-LS, i.e. size-exclusion chromatography coupled with light-scattering detection. The average molecular mass and the molecular mass distribution are calculated from molecular weight data and weight concentrations determined continuously with elution time. The molecular weight at each elution time is determined absolutely by combining a light-scattering detector with a concentration-sensitive detector. Therefore, SEC-LS is classified as an absolute method.

For the applicability of the method, see ISO 16014-1:—, Clause A.1.