90.60 Close of review Mar 4, 2024
ISO
ISO/TC 61/SC 9 Thermoplastic materials
International Standard
83.080.20 Thermoplastic materials
Published
This document specifies two methods, A and B, for the preparation of pastes (also known as plastisols) from appropriate PVC resins, plasticizers and other ingredients using a planetary mixing process.
Both method A and method B can be used to prepare pastes of any composition. Method A (single-speed) is particularly applicable to resins prone to heat build-up during paste preparation, while method B (two-speed) might be preferred for repetitive work, e.g. for process control during resin manufacture, because of its shorter mixing time.
Such pastes can be used for a variety of test purposes, including the determination of rheological properties for resin designation and specification.
WITHDRAWN
ISO 4612:1999
PUBLISHED
ISO 4612:2018
90.60
Close of review
Mar 4, 2024