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sklademVydáno: 2018
ISO 4612:2018
ISO 4612:2018-Plastics — Preparation of PVC pastes for test purposes — Planetary-mixer method
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Označení normy: | ISO 4612:2018 |
Počet stran: | 6 |
Vydání: | 3 |
Vydáno: | 2018 |
DESCRIPTION
ISO 4612:2018
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.