AOAC Official Methods of Analysis, 19th Edition 2012 The Official Methods of Analysis, 19th Edition The Official Methods of Analysis SM , 19th Edition (print), is now available for purchase. The print edition is a 2-volume set (hard cover bound books; not a subscription). Following are highlights in the new edition: 31 Methods adopted as First Action 16 SMPRs developed and approved by AOAC stakeholder panels 7 Methods with major modifications 10 Methods with minor editorial revisions 7 New appendices on guidelines for SMPRs, voluntary consensus standards, probability of detection, validation of microbiological methods for foods and environmental surfaces, validation of dietary supplements and botanicals, single-laboratory validation of infant formula and adult nutritionals, and validation of food allergens A new subchapter on General Screening Methods (Chapter 17, subchapter 15) that includes screening methods for bacteria Updated information on program components ...