United States Department of Commerce Technology Administration National Institute of Standards and Technology SPECIFICATIONS, TOLERANCES, AND OTHER TECHNICAL REQUIREMENTS FOR WEIGHING AND MEASURING DEVICES as adopted by the 91st National Conference on Weights and Measures 2006 NIST Handbook 44 2007 .Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices as adopted by the 91st National Conference on Weights and Measures 2006 Editors: Tina Butcher Linda Crown Lynn Sebring Richard Suiter Juana Williams National Institute of Standards and Technology Weights and Measures Division Gaithersburg, MD 20899-2600 U. S. Department of Commerce Carlos M. Gutierrez, Secretary Robert Cresanti, Under Secretary of Commerce for Technology Technology Administration National Institute of Standards and Technology William A