The International Pharmacopoeia Twelfth Edition - Pharmacopoea Internationalis Editio XII: Supplementary information: Reference Substances and Reference Spectra: General guidelines for the establishment, maintenance and distribution of chemical reference substances1

Supplementary information: Reference Substances and Reference Spectra: General guidelines for the establishment, maintenance and distribution of chemical reference substances¹

¹ WHO Expert Committee on Specifications for Pharmaceutical Preparations, Forty-first report. Geneva, World Health Organization, 2007, Annex 3 (WHO Technical Report Series, No. 943)