has prepared this introductory document to promote the sound evaluation of measurement uncertainty through the use of the GUM and to provide a prelude to the GUM Supplements and other documents JCGM is producing [3, 4, 5, 6, 7, 8].As in the GUM, this document is primarily concerned with the expression of uncertainty in the measurement of a well-defined physical quantity — the measurand — that can be characterized by an essentially unique value.The purpose of the GUM Supplements and the other documents is to help with the interpretation of the GUM and enhance its application. The GUM Supplements and the other documents are together intended to have a scope t
DS/ISO/IEC Guide 98-1:2009 history
2009DS/ISO/IEC Guide 98-1:2009 Uncertainty of measurement - Part 1: Introduction to the expression of uncertainty in measurement