scope:

This International Standard specifies minimum requirements forthe contents of certificates for homogeneous gas mixtures in gascylinders to be used as calibration gas mixtures. Pure gases, whenused as calibration gas mixtures, are also covered by thisInternational Standard. Gases and gas mixtures produced for otherpurposes are not considered. The requirements in this InternationalStandard deal with the metrological aspects of calibration gasmixtures. Other aspects, such as safety and legislative aspects,are not covered. Furthermore, it specifies additional information(optional data) recommended for describing a homogeneous gasmixture, supplied under pressure in a cylinder or other container.It does not cover the field of safety-relevant data and relatedlabelling.