STN EN ISO 13885-1
| Name: | STN EN ISO 13885-1 |
| Validity: | Valid |
| Number of pages: | 36 |
| Language: |
EN
|
| Paper: | 17,20€ |
| Electronic version |
a) Only read (without ability to print and copy)
15,48€ b) Without ability to print, with ability to copy (printscreen) 17,20€ c) With ability to print and copy (printscreen) 22,36€ |
| Slovak title | Gélová permeačná chromatografia (GPC). Časť 1: Tetrahydrofurán (THF) ako eluent (ISO 13885-1: 2020) |
| English title | Gel permeation chromatography (GPC) - Part 1: Tetrahydrofuran (THF) as eluent (ISO 13885-1:2020) |
| Release Date: | 01. 12. 2021 |
| Date of withdrawal: | |
| ICS: | 87.060.20 |
| Sorting character/National clasification code | 67 3058 |
| Level of incorporation: | idt ISO 13885-1:2020, idt EN ISO 13885-1:2021 |
| Official Journal | 11/21 |
| Amendments | |
| Replaced by: | |
| Repleces: | |
| Note in Official Journal: | |
| Subject of the standard: | 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 tetrahydrofuran (THF) 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 of polymers with elution limits outside the calibration range (see 7.6 and Annex C). |
| Preview: | Náhľad normy (PDF) |