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Glavni meni

ISO 10927:2018

Plastics — Determination of the molecular mass and molecular mass distribution of polymer species by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS)
5. 6. 2018.

Опште информације

90.93     7. 6. 2023.

ISO

ISO/TC 61/SC 5

Međunarodni standard

83.080.01  

engleski   francuski  

Kupovina

Objavljen

Jezik na kome želite da primite dokument.

Apstrakt

This document specifies a general method for determining the average molecular mass and molecular mass distribution of polymers (see Reference [1]) from 2 000 g ⋅ mol−1 to 20 000 g ⋅ mol−1 by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS).
The average molecular masses and molecular mass distributions are calculated from a calibration curve constructed using synthetic-polymer and/or biopolymer standards. This method is therefore classified as a relative method.
The method is not applicable to polyolefins or to polymers with a polydispersity >1,2.

Životni ciklus

PRETHODNO

POVUČEN
ISO 10927:2011

TRENUTNO

OBJAVLJEN
ISO 10927:2018
90.93 Odluka o potvrđivanju standarda
7. 6. 2023.

Nacionalna preuzimanja

Plastične mase – Određivanje molarne mase i raspodele molarne mase po vrsti polimera pomoću MALDI-TOF masene spektrometrije (MALDI-TOF-MS)

60.60 Standard objavljen