UNE-EN ISO 10927:2019
Current
The latest, up-to-date edition.
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) (ISO 10927:2018)
Hardcopy , PDF
Spanish, Castilian, English
05-06-2019
This International Standard specifies a general method for determining the average molecular mass and molecular mass distribution of polymers (see Reference[1]) from 2 000 g Å" mol"1 to 20 000 g Å" 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.
| Committee |
CTN 53/SC 6
|
| DocumentType |
Standard
|
| Pages |
23
|
| PublisherName |
Asociación Española de Normalización
|
| Status |
Current
|
| Standards | Relationship |
| ISO 10927:2018 | Identical |
| EN ISO 10927:2018 | Identical |
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