"Version: 20240701"--Title page verso.Includes bibliographical references.part A. Understanding the fundamentals of measurement uncertainty. 1. Using correct terminology -- 1.1. Quantity and quantity value -- 1.2. The measurand and parameter -- 1.3. Accuracy and precision -- 1.4. Standard uncertainty and uncertainty contribution -- 1.5. Error, uncertainty, and expanded uncertainty2. Why do we n…