PROBLEM TO BE SOLVED: To provide a medical radiation sterilization corresponding vinyl chloride resin composition which is excellent in extrusion moldability, has excellent discoloration resistance to radiation sterilization, and has no problem in an elution test required for a medical material.SOLUTION: A medical vinyl chloride resin composition contains a component (a) of 100 pts.mass of a vinyl chloride resin, and a component (b) of 20-250 pts.mass of an isosorbide diester-based plasticizer.COPYRIGHT: (C)2015,JPO&INPIT【課題】医療用放射線滅菌対応塩化ビニル樹脂組成物であって、押出成形性に優れ、放射線滅菌に対し優れた耐変色性を有し、医療用材料に要求される溶出性試験において問題のない医療用放射線滅菌対応塩化ビニル樹脂組成物を提供すること。【解決手段】成分(a)塩化ビニル樹脂100質量部、成分(b)イソソルバイドジエステル系可塑剤20~250質量部、を含有することを特徴とする医療用放射線滅菌対応塩化ビニル樹脂組成物。【選択図】なし