Historical
ISO 6145-4:1986
Gas analysis -- Preparation of calibration gas mixtures -- Dynamic volumetric methods -- Part 4 : Continuous injection method
Describes the preparation of mixtures by continuos mixing of volume flows, whereby the precision of the concentration of each constituent in the range from 10 000 to 10 ppm (V/V) amounts to about 5%. Includes a practical example with figure.
International Organization for Standardization [iso]