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Many measurement instruments have technical specifications and datasheets that say, for example, “Accuracy: 4 %”. This is an inappropriate use of the term “accuracy” because an “accuracy” is not a quantity and cannot be assigned a value. This document describes how to use the term “accuracy”... more
  This document was prepared by the International Commission on Illumination (CIE) in cooperation with Technical Committee ISO/TC 274, Light and lighting. This first edition of ISO/CIE 11664-1 cancels and replaces ISO 11664-1:2007 | CIE S 014-1:2006, of which it constitutes a minor revision. The... more
  This document was prepared by the International Commission on Illumination (CIE) in cooperation with Technical Committee ISO/TC 274, Light and lighting. This first edition of ISO/CIE 11664-3 cancels and replaces ISO 11664-3:2012 | CIE S 014-3:2011, of which it constitutes a minor revision. The... more
  This document was prepared by the International Commission on Illumination (CIE) in cooperation with Technical Committee ISO/TC 274, Light and lighting. This first edition of ISO/CIE 11664-4 cancels and replaces ISO 11664-4:2008 | CIE S 014-4:2007, of which it constitutes a minor revision. The... more

Latest News and Events

  The Canadian National Committee of the CIE is pleased to announce that it will host the biennial joint...
  The Belgian Institute of Illumination is pleased to invite you to its annual seminar, Back to Basics, ...
    The Hellenic Illumination Committee (Greek National Committee of the CIE) is organizing the 6th ...
  Aydinlatma Türk Milli Komitesi, the Turkish National Committee of the CIE, will hold their 12th...