Official Methods of Analysis (OMA) is a publication of AOAC INTERNATIONAL comprising over 3,000 validated methods.

Official Methods of Analysisâ„  (OMA) is the most comprehensive and reliable collection of chemical and microbiological methods and consensus standards available. Many Official Methods have been adopted as harmonized international reference methods by the International Organization for Standardization (ISO), International Dairy Federation (IDF), International Union of Pure and Applied Chemistry (IUPAC), and the Codex Alimentarius Commission.

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