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sklademVydáno: 2019
ISO 16014-4:2019
ISO 16014-4:2019-Plastics — Determination of average molecular weight and molecular weight distribution of polymers using size-exclusion chromatography — Part 4: High-temperature method
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Označení normy: | ISO 16014-4:2019 |
Počet stran: | 14 |
Vydání: | 3 |
Vydáno: | 2019 |
Jazyk: | Anglicky |
Popis
ISO 16014-4:2019
This document specifies a method for determining the average molecular weight and the molecular weight distribution of polymers by size-exclusion chromatography (SEC) using an organic eluent at temperatures between 60 °C and 220 °C (see Annex A). The average molecular weight and the molecular weight distribution are calculated from a calibration curve prepared using polymer standards. Therefore, this test method is classified as a relative method (see ISO 16014-1).