The primary purpose of this technical report is to
provide guidelines for assessing the reliability of measurement
uncertainty statements. Applying these guidelines
can assist businesses in avoiding disagreements
about measurement uncertainty statements and in resolving
such disagreements should they occur. Disagreements
over uncertainty statements involving both single
measurement systems and multiple measurement systems
(each having their own uncertainty statement)
are considered. Guidance is provided for examining
uncertainty budgets as the primary method of assessing
their reliability. Additionally, resolution by direct measurement
of the measurand is also discussed.