I.S. EN ISO 10927:2018
Current
The latest, up-to-date edition.
Plastics - Determination of the molecular mass and molecular mass distribution of polymer species by matrixassisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS) (ISO 10927:2018)
Hardcopy , PDF
English
31-07-2018
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Dates of withdrawal of national standards are available from NSAI.
| DocumentType |
Standard
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| Pages |
0
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| PublisherName |
National Standards Authority of Ireland
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| Status |
Current
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| Supersedes |
Kunststoffe - Bestimmung der Molmasse und Molmassenverteilung von polymeren Species durch matrixunterstütze Laser-Desorptions/Ionisations- Flugzeit-Massenspektrometrie (MALDI-TOF-MS) (ISO 10927:2018)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 matrixassisted 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.
| Standards | Relationship |
| EN ISO 10927:2018 | Identical |
| EN ISO 10927:2011 | Identical |
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