ISO 4574:1978
Plastics; PVC resins for general use; Determination of hot plasticizer absorption
- Standard No.
- ISO 4574:1978
- Release Date
- 1978
- Published By
- International Organization for Standardization (ISO)
- Status
- Replace By
- ISO 4574:2019
- Latest
- ISO 4574:2019
- Scope
- Conditioning of 200 parts of plasticiser in the bowl of a planetary mixer at a temperature of 75 C. Addition of 100 parts of the resin to be tested and mixing with the plasticizer. Taking of samples of this mixture at various times, removal of excess of plasticizer by centrifuging and determining the quantity of plasticizer absorbed by the polymer. Plotting a graph, from which can be determined for the polymer under test: - the mean rate of plasticizer absorption (RPA) ; - the hot plasticizer absorption (HPA) at 75 C and 30 min.
ISO 4574:1978 history
- 2019 ISO 4574:2019 Plastics — PVC resins for general use — Determination of hot plasticizer absorption
- 1978 ISO 4574:1978 Plastics; PVC resins for general use; Determination of hot plasticizer absorption
