This International Standard specifies requirements for certificates for pure gases and for certificates for homogene-ous gas mixtures to be used as calibration gases.
This International Standard specifies the minimum information (mandatory data) required and additional information (optional data) recommended for characterizing a pure gas, or a homogeneous gas mixture, supplied under pressure in a cylinder or other container. This International Standard does not cover the field of safety-relevant data and re-lated labelling.
Two different formats are considered for the information specified by this International Standard:
— a certificate, i.e., a document uniquely related to the container; and
— a certificate extract, i.e., a document affixed to the container.