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Homepage>BS Standards>87 PAINT AND COLOUR INDUSTRIES>87.060 Paint ingredients>87.060.20 Binders>BS EN ISO 13885-3:2021 Gel permeation chromatography (GPC) Water as eluent
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immediate downloadReleased: 2021-10-04
BS EN ISO 13885-3:2021 Gel permeation chromatography (GPC) Water as eluent

BS EN ISO 13885-3:2021

Gel permeation chromatography (GPC) Water as eluent

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Standard number:BS EN ISO 13885-3:2021
Pages:32
Released:2021-10-04
ISBN:978 0 539 17264 5
Status:Corrigendum
DESCRIPTION

BS EN ISO 13885-3:2021


This standard BS EN ISO 13885-3:2021 Gel permeation chromatography (GPC) is classified in these ICS categories:
  • 87.060.20 Binders

This document specifies the determination of the molar-mass distribution and the average molar mass values Mn (number average) and Mw (weight average) of polymers that are soluble in water by gel permeation chromatography (GPC).

NOTE Also known as size exclusion chromatography (SEC).

This method is applicable to neutral polymers and polyanions (e.g. polycarboxylates, polysaccharides, fully hydrolyzed polyvinyl alcohols and high-molecular polyethylene oxides). It is not applicable to polycations [e.g. polyvinylpyrrolidone, polyvinylpyridine, salts of poly(diallyl‑N,N‑dimethyl‑azacyclopentane), chitosan].

Despite good solubility in the mobile phase and even though the chromatograms obtained show good repeatability, it is possible that this method cannot be used with certain polymer types because of specific interactions (e.g. adsorption) within the sample/eluent/column system (see also Clause 12).

The conditions specified in this document are not applicable to the GPC analysis of polymer samples with Mw values greater than 106 g/mol and/or polymers with elution limits outside the calibration range (see 7.6 and Annex C).

This document includes no correction methods (e.g. for the elimination of peak broadening). If absolute molar mass values are required, an absolute method (e.g. membrane osmometry for Mn or light scattering for Mw) can be used.