ISO 16564:2004 Preview
Rubber, raw natural -- Determination of average molecular mass and molecular-mass distribution by size exclusion chromatography (SEC)
This standard was last reviewed and confirmed in 2017. Therefore this version remains current.
ISO 16564:2004 specifies a method of determining the average molecular mass and the molecular-mass distribution of raw natural rubber dissolved in tetrahydrofuran. A set of polystyrene standards is used for calibration purposes (i.e. the method is a relative one).
An alternative method, using cyclohexane as solvent and polyisoprene standards, is included in an informative annex.
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Revisions / Corrigenda
ISO 16564:2004/Amd 1:2006