標(biāo)準(zhǔn)號(hào)：ISO 4574-1978
中文標(biāo)準(zhǔn)名稱：塑料 通用聚氯乙烯(PVC)樹脂 熱增塑劑吸收率測定
英文標(biāo)準(zhǔn)名稱：Plastics; PVC resins for general use; Determination of hot plasticizer absorption
標(biāo)準(zhǔn)類型：G31
發(fā)布日期：1999/12/31 12:00:00
實(shí)施日期：1999/12/31 12:00:00
中國標(biāo)準(zhǔn)分類號(hào)：G31
國際標(biāo)準(zhǔn)分類號(hào)：83.080.20
適用范圍：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.