Plastics — Polypropylene (PP) and propylene-copolymer thermoplastics — Determination of isotactic index

Informácie o norme:

Označenie normy: ISO 9113:2019-ed.2.0
Dátum vydania normy: 24.6.2019
Počet strán: 6
Približná hmotnosť: 18 g (0.04 libier)
Krajina: Medzinárodná technická norma
Kategória: Technické normy ISO

Anotácia textu normy ISO 9113:2019-ed.2.0 :

Description / Abstract: This document specifies a method for determining the percentage of matter which can be extracted from crystalline propylene plastics by boiling n-heptane under standard conditions of testing. Isotactic index is determined by conventional chemical extraction as an absolute method. This method provides for the identification and coding of types H, B and R propylene plastics according to ISO 19069-1[1]. This method is suitable only for base polymers and is not applicable for mixtures. This method starts with solid propylene plastics in the form of particles of specified fineness.