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Overview ISO 4574:2019 specifies a laboratory method to determine the hot plasticizer absorption of PVC resins intended for general use (designation “G” in ISO 1060‑1). The test quantifies how much p…
What is ISO 4574 – plasticizer absorption of PVC about? Since pure PVC is brittle, it requires added plasticizers to make it flexible and to impart other desired properties. Unabsorbed plasticizer de…