The specifications, tolerances and other technical requirements for commercial and regulatory weighing and measuring devices as adopted by the National Conference on Weights and Measures and published in National Bureau of Standards Handbook 44, "Specifications, Tolerances and Other Technical Requirements for Commercial Weighing and Measuring Devices," and supplements thereto or revisions thereof shall apply to commercial and regulatory weighing and measuring devices in the state, except insofar as modified or rejected by regulation.
Okla. Stat. tit. 2, § 14-34