About CEN
The European Committee for Standardization is one of three European Standardization Organizations (together with CENELEC and ETSI) that have been officially recognized by the European Union and by the European Free Trade Association (EFTA) as being responsible for developing and defining voluntary standards at European level.
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Project
| Reference | EN ISO 13885-3:2021 |
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| Title | Gel permeation chromatography (GPC) - Part 3: Water as eluent (ISO 13885-3:2020) |
| Work Item Number | 00139729 |
| Abstract/Scope | 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. |
| Status |
Published
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| Reference Document |
ISO 13885-3:2020 (EQV)
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| date of Availability (DAV) | 2021-09-01 |
| ICS | 87.060.20 - Binders |
| A-Deviation(s) | |
| Special National Condition(s) |
Legal
| Directive(s) | |
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| Mandate(s) | |
| Citation in OJEU |
Implementation Dates
| date of Ratification (DOR) (1) | 2021-08-23 |
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| date of Availability (DAV) (2) | 2021-09-01 |
| date of Announcement (DOA) (3) | 2021-12-31 |
| date of Publication (DOP) (4) | 2022-03-31 |
| date of Withdrawal (DOW) (5) | 2022-03-31 |
Relations
| Supersedes | |
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| Superseded by | |
| Normative reference (6) |
ISO 1513
ISO 15528 ISO 4618 |
| Bibliographic references (7) |
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| Sales Points |
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(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved
(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat
(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level
(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement
(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn
(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.
In the case of undated standard, a link to the last dated version is provided.
In the case of series, a link to each standard identified in the series is provided.
We also invite you to check (via the website) whether corrigenda and/or amendments shall be read in conjunction with the main standard.
(7) This list of bibliographic references, which is provided for homegrown standards only, is purely indicative and was retrieved automatically using available XML files. It is limited to publications that have been published in the XML format. For standards that are not homegrown, the corresponding international standard should be consulted.