VDI 3490 Blatt 13-1992 PDF

Scope: The guideline deals with the dynamic production of those test gases in which an admixture is easily condensable. Since these gases tend to sorb at interfaces and cannot be maintained near the saturation limit without condensation and pressure, the saturation method is described as the applicable method. In addition to presenting the basic principles of the process, exemplary embodiments of test gas production using thermostatized condensation devices with Peltier elements and air circulation are presented. In order to create the best possible conditions when designing the apparatus and to keep the error in the volume fraction of the admixture as low as possible, the guideline also contains an error analysis and practical application instructions.*www.vdi.de/3490

VDI 3490 Blatt 13-1992 Referenced Document

VDI 3490 Blatt 3-1980 Measurement of gases; specifications for transfer of calibration gas mixtures

1992 VDI 3490 Blatt 13-1992 Measurement of gases; calibration gas mixtures; preparation of calibration gas mixtures by saturation methods
1986 VDI 3490 Blatt 13-1986 Messen von Gasen; Pruefgase - Herstellen von Pruefgasen durch Saettigungsmethoden