
Rubber, raw natural — Determination of average molecular mass and molecular-mass distribution by size exclusion chromatography (SEC)
NORMA vydaná dňa 7.10.2004
Designation standards: ISO 16564:2004
Publication date standards: 7.10.2004
The number of pages: 7
Approximate weight : 21 g (0.05 lbs)
Country: International technical standard
Kategória: Technické normy ISO
Description / Abstract: 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.