EN ISO 16014-5:2012 Plastics - Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography - Part 5: Method using light-scattering detection
This part of ISO 16014 specifies a general method for determining the average molecular mass and themolecular mass distribution of polymers using SEC.LS, i.e. size-exclusion chromatography coupled with lightscatteringdetection. The average molecular mass and the molecular mass distribution are calculated frommolecular mass data and mass concentrations determined continuously with elution time. The molecular massat each elution time is determined absolutely by combining a light-scattering detector with a concentrationsensitivedetector. Therefore, SEC.LS is classified as an absolute method.
2019EN ISO 16014-5:2019 Plastics - Determination of average molecular weight and molecular weight distribution of polymers using size-exclusion chromatography - Part 5: Light-scattering method (ISO 16014-5:2019)
2012EN ISO 16014-5:2012 Plastics - Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography - Part 5: Method using light-scattering detection