Objavljen
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.
POVUČEN
ISO 10927:2011
OBJAVLJEN
ISO 10927:2018
90.93
Odluka o potvrđivanju standarda
7. 6. 2023.
Plastične mase – Određivanje molarne mase i raspodele molarne mase po vrsti polimera pomoću MALDI-TOF masene spektrometrije (MALDI-TOF-MS)
60.60 Standard objavljen