Norm

ISO/DIS 19929:2016 en

Kunststoffen - Bepaling van de gemiddelde moleculaire massa en de mengverhouding tussen polyethyleenglycol en de derivaten hiervan door MALDI-TOF-MS.

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Over deze norm

Status Ontwerp
Aantal pagina's 12
Commissie Kunststoffen
Gepubliceerd op 09-05-2016
Taal Engels
This standard specifies a general method for determining the average molecular mass and mixture ratio of poly (ethylene glycol) (PEG) and its derivatives with different end groups by matrix assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS). The molecular masses of PEG and its derivatives are from 500 g mol-1 to 20 000 g mol-1. The composition is calculated by means of a calibration curve constructed using standard polymer mixtures, where the peak area ratio is plotted versus the mass ratio. This standard may be applied to other polymers with monomeric unit similar to PEG.

Details

ICS-code 83.080.01
Nederlandse titel Kunststoffen - Bepaling van de gemiddelde moleculaire massa en de mengverhouding tussen polyethyleenglycol en de derivaten hiervan door MALDI-TOF-MS.
Engelse titel Plastics -- Determination of average molecular mass and mixture ratio of poly (ethylene glycol) and its derivatives by MALDI-TOF-MS

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