NEN-ISO 6145-7
Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 7: Thermal mass-flow controllers
| Organization: | NEN |
| Publication Date: | 1 May 2001 |
| Status: | inactive |
| Page Count: | 22 |
| ICS Code (Chemical analysis): | 71.040.40 |
scope:
Specifies a method for the continuous production of calibration gas mixtures, containing two or more components, from pure gases or other gas mixtures by use of commercially available thermal mass-flow controllers. By adjustment of set-points on flow controllers to pre-determined values, it is possible to change the composition of the gas mixtures rapidly and in a continuously variable manner.
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