ISO 16664:2004
ISO 16664:2004


ISO 16664:2004 describes factors that may influence the composition of pure gases and homogeneous gas mixtures used for calibration purposes. ISO 16664:2004 only applies to gases or gas mixtures that are within the "utilization period", and it pays special attention to

  • storage of calibration gas cylinders;
  • calibration gas withdrawal from cylinders;
  • transfer of calibration gas from cylinders to the point of calibration.

ISO 16664:2004 also outlines a method of assessing the stability for a gas mixture, and takes into account the gas composition uncertainty given on the certificate and the users measurement uncertainty.

General information 

  •  :  Withdrawn
     : 2004-07
  •  : 1
     : 17
  •  : ISO/TC 158 Analysis of gases
  •  :
    71.040.40 Chemical analysis

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