“…Specifications to other plasticizers are coordinated with specification for DOP. Leading position of dioctyl phthalate to this day is determined, above all, by the development of production of flexible PVC -the largest consumer of DOP [1,2,7,9,10]. Although recently the structure of PVC's consumption has changed to the direction of hard manufactures, however, plasticized materials on the base of PVC remain actual in the different fields.…”