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sklademVydáno: 2019
ISO 16014-2:2019
ISO 16014-2:2019-Plastics — Determination of average molecular weight and molecular weight distribution of polymers using size-exclusion chromatography — Part 2: Universal calibration method
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Označení normy: | ISO 16014-2:2019 |
Počet stran: | 10 |
Vydání: | 3 |
Vydáno: | 2019 |
Jazyk: | Anglicky |
DESCRIPTION
ISO 16014-2:2019
This document specifies a method for determining the average molecular weight and the molecular weight distribution of polymers using size-exclusion chromatography (SEC). The average molecular weight and the molecular weight distribution are calculated using a universal calibration curve instead of the conventional calibration curve. NOTE This test method is classified as a relative method as described in ISO 16014-1, but the average molecular weights and molecular weight distributions calculated by the method are equal to, or nearly equal to, the absolute values. For details, see the Annex A.