AOAC Methods in Codex STAN 234 (Preliminary Methods Review)

BARBANO ET AL.: J. ASSOC. OFF. ANAL. CHf.M. (VOL. 73. NO. 6, 1990)

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111 some laboratories using block digestors, it may be neces– my to use a slightly longer boiling time after clearing to 11btain maximum recovery of nitrogen from milk. In general, more mechanical and electrical problems with equipment ,iiereencountered for block digestor equipment than for tra– ditional equipment. R9eomm•ndallon The Associate Referee recommends that the replacement 111cthod description for determination of nitrogen (total) in milk by the Kjeldahl method be adopted official first action 1~ an improved method to replace 920.J05, Acknowledgments The Test Procedures Committee of Market Administra– wrs thanks Maureen Chapman for her aid with preliminary 'Nork and also thanks the laboratories operated by or under Olntract to the following Federal Milk Markets: Chicago Regional Eastern Ohio/Western Pennsylvania Greater Kansas City New England Texas Upper Midwest The Committee also expresses appreciation to the follow– ing laboratories for their participation: Cornell University ".uticipated at the request and under agreement with the 1 ummittee, Dairy Quality Control Institute at the request of ind under agreement with the Upper Midwest Market Ad– ministrator, and Wisconsin Department of Agriculture Bu- 1,au of Laboratory Services at the request of and under J~reement with the Chicago Regional Mill: Market Admin- 11trator. Members of the Test Procedures Committee are R1~hard Fleming and Chapman E. Dunham, Carrollton, TX; \1yron R. McKinley, Glen Ellyn, IL; Donald R. Nicholson, ,1 ,ryland Heights, MO; Aaron L. Reeves, Minneapolis, W'-l; Arnold Stallings, Louisville, KY; and Thomas A. Wil- 11n, New York, NY. Partial support for this research was provided by Hatch Prnject 143-408 of the Agricultural Experiment Station at CumeU University.

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Codex Trial Method Review