обеспечение единства измерений(в английском языке предпочтительнее именно этот вариант, все остальные (assurance of uniformity of measurements, ensuring the uniformity of measurements и т.д.) являются калькой с русского языка и никем, кроме русскоязычных авторов, не используются: Measurement Assurance Programs (MAPs) can be defined as: "A program applying specified (quality) principles to a measurement process. A MAP establishes and maintains a system of procedures intended to yield calibrations and measurements with verified limits of uncertainty based on feedback of achieved calibration of measurement results. Achieved results are observed systematically and used to eliminate sources of unacceptable uncertainty'' [NASA].nasa.gov, nist.gov, jstor.org, springer.com, calibratingservices.comMachinamentum)
