Home

ISO/IEC Guide 98-3:2008
Subscribe to updates

Uncertainty of measurement -- Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)

The HTML version of JCGM 100, on which ISO/IEC Guide 98-3:2008 is based, can be found at http://www.iso.org/sites/JCGM/JCGM-introduction.htm.

Abstract

ISO/IEC Guide 98-3:2008 is a reissue of the 1995 version of the Guide to the Expression of Uncertainty in Measurement (GUM), with minor corrections. This Guide establishes general rules for evaluating and expressing uncertainty in measurement that can be followed at various levels of accuracy and in many fields — from the shop floor to fundamental research. The principles of this Guide are intended to be applicable to a broad spectrum of measurements, including those required for:

  • maintaining quality control and quality assurance in production;
  • complying with and enforcing laws and regulations;
  • conducting basic research, and applied research and development, in science and engineering;
  • calibrating standards and instruments and performing tests throughout a national measurement system in order to achieve traceability to national standards;
  • developing, maintaining, and comparing international and national physical reference standards, including reference materials.

 

Format
  • PDF

    This format preserves the paper layout, and is watermarked

  • EPUB

    This format allows documents to be read on tablets and smartphones

  • COLOUR PDF

    Enhanced user-friendly colour PDF format

  • REDLINE

    See any updates made from previous versions at a glance

  • PAPER

    Normally A4 size documents. Shipping costs apply

Language
PDF
Paper

Swiss francs CHF 198

Add to basket

Contact customer services

Send your enquiry by email
or call us on +41 22 749 08 88
09:00 – 12:30, 14:00 – 17:00 (UTC+1).