摘要: A flexible multilayer film for forming a container defining liquid-tight chamber storing liquid is described here. The comprises first layer (1) and second (2). barrier layer, example, PCTFE which arranged inwardly of the (2) as seen in direction from formed film. septum TPE having self-sealing properties so to seal around hypodermic needle penetrating said As above an innermost surface (5) weldable onto itself preferably made (3) comprising PE and/or PP.