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Technical rule [WITHDRAWN]

VDI 3490 Blatt 17:1998-08

Measurement of gases - Calibration gas mixtures - Dynamic preparation with thermal mass flow controllers

German title
Messen von Gasen - Prüfgase - Herstellung von Prüfgasen unter Verwendung von thermischen Massenstromreglern
Publication date
1998-08
Original language
German, English
Pages
18
Note
The issuing body recommends using {0} DIN EN ISO 6145-7:2011-03 .

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Publication date
1998-08
Original language
German, English
Pages
18
Note
The issuing body recommends using {0} DIN EN ISO 6145-7:2011-03 .

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Short description
The document describes the preparation of calibration gas mixtures by continuous mixing of the gaseous components at controlled flow rates. In this method the flows of the complementary gas and the gasous constituents are determined as mass flows by temperature sensors and adjusted to preselected set-points by means of flow regulators which are controlled by a feedback circuit.
Content
ICS
13.040.01
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