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Homepage>CSN Standards>67 CHEMICAL INDUSTRY PRODUCTS>6730 Coating compounds and lacquers for electrotechnical purposes, general and testing>CSN EN ISO 13885-2 - Gel permeation chromatography (GPC) - Part 2: N,NDimenthylacetamide (DMAC) as eluent
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Released: 01.03.2022
CSN EN ISO 13885-2 - Gel permeation chromatography (GPC) - Part 2: N,NDimenthylacetamide (DMAC) as eluent

CSN EN ISO 13885-2

Gel permeation chromatography (GPC) - Part 2: N,NDimenthylacetamide (DMAC) as eluent

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Number of Standard:CSN EN ISO 13885-2
Category:673038
Pages:40
Released:01.03.2022
Catalog number:513727
DESCRIPTION

CSN EN ISO 13885-2

CSN EN ISO 13885-2 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 DMAC (N,N-Dimethylacetamide) by gel permeation chromatography (GPC). NOTE - Also known as size exclusion chromatography (SEC). 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. 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 method (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.
Original English text of CSN EN Standard.
The price of the Standard included all amendments and correcturs.