Aktivní norma | Vydána: 15.05.2019

ISO 16014-2:2019-ed.3.0

Plastics — Determination of average molecular weight and molecular weight distribution of polymers using size-exclusion chromatography — Part 2: Universal calibration method
(Plastiques — Détermination de la masse moléculaire moyenne et de la distribution des masses moléculaires de polymeres par chromatographie d´exclusion stérique — Partie 2: Méthode d´étalonnage universelle)

Dostupné jazyky: Anglicky

Dostupné provedení: Elektronické PDF, Tištěné

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Podrobné informace

Označení: ISO 16014-2:2019-ed.3.0

Datum vydání: 15.05.2019

Stran: 10

Země: Mezinárodní technická norma

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Anotace

Description / Abstract: 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.

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