标准编号：ISO 4612:2018
中文名称：塑料 试验用聚氯乙烯（PVC）膏料的准备 齿轮传动混合方法
英文名称：Plastics — Preparation of PVC pastes for test purposes — Planetary-mixer method
发布日期：2018-12
标准范围
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.
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