ISO 24076:2021Published

Plastics — Polypropylene (PP) — Determination of isotactic index by low-resolution nuclear magnetic resonance spectrometry

Plastiques — Polypropylène (PP) — Détermination de l'indice isotactique par spectrométrie de résonance magnétique nucléaire à basse résolution

Abstract / scope

This document specifies a relative method for the determination of polypropylene (PP) isotactic index by low-resolution pulsed nuclear magnetic resonance spectroscopy (LR-NMR).

This method enables the identification and coding of types H propylene (PP-H) plastics according to ISO 19069‑1.

This method is suitable for base polymers and is not applicable for mixtures.

NOTE The direct method for the determination of polypropylene isotactic index is specified in ISO 9113.