This document specifies test methods for the determination of the carbon black content of polyolefin 
compositions used in particular for the manufacture of pipes and fittings, and provides a basic 
specification for polyethylene pipes and fittings.
This document applies equally to the material for manufacture and to any material taken from a pipe or 
fitting.nd edition 2019-02 Polyolefin pipes and fittings — Determination of carbon black content by calcination and pyrolysis — Test method Tubes et raccords en polyoléfines — Détermination de la teneur en noir de carbone par calcination et pyrolyse — Méthode d'essai Reference number ISO 6964:2019(E) ？ ISO 2019 ISO 6964:2019(E) COPYRIGHT PROTECTED DOCUMENT ？ ISO 2