title: The international standard for colistin.
abstract: An International Standard for Colistin has been established and the International Unit defined as the activity contained in 0.00004878 mg of this preparation. The unit was defined on the basis of a collaborative assay in which nine laboratories from six different countries participated. The material used to prepare the international standard had been manufactured in Japan; it was shown to have a composition similar to that of material produced in Europe and to be suitable for the assay of colistin from the existing sources of manufacture.
mesh_terms: D003091:Colistin / Q000592:standards*; D007391:International Cooperation; D014944:World Health Organization
chemical_list: D003091:Colistin