The 18th Edition, Revision 4, of the Official Methods of Analysis^SM (OMA) is available to order. In addition to the print product, the new revision will be accessible online at https://my.aoac.org/source/Orders/index.cfm?section=Orders&activesection=Orders (click on the “OMA Online” icon) or directly at http://eoma.aoac.org/.

Edited by George Latimer (retired, Office of the Texas State Chemist), the 18th Edition, Revision 4, includes new last printing in March 2010:

*First Action Methods

*Final Action Methods

*Minor editorial revisions (for example, to update supplier information, columns, formulations; to correct calculations and cross references)

*Biological Threat Agent Method (BTAM) Validation Guideline [a comprehensive technical guidance for conducting AOAC validation studies for biological threat agent methods and/or procedures submitted for Performance Tested Methods^SM (PTM) and OMA status; includes testing plans for internal, independent, and collaborative studies.

For more information or to order, contact AOAC Customer Service at customerservice@aoac.org or Tel: +1-301-924-7077 ext. 170.

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