UNI EN ISO 6145-7 : 2011
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
GAS ANALYSIS - PREPARATION OF CALIBRATION GAS MIXTURES USING DYNAMIC VOLUMETRIC METHODS - PART 7: THERMAL MASS-FLOW CONTROLLERS
12-09-2022
01-01-2011
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Set-up
6 Preparation of gas mixtures
7 Calculations
Annex A (informative) - Pre-mixed gases for preparation
of mixtures of high dilution
Annex B (informative) - Practical hints
Annex C (informative) - Calculation of uncertainties
Bibliography
Describes a method for 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.
| DocumentType |
Standard
|
| PublisherName |
Ente Nazionale Italiano di Unificazione (UNI)
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| EN ISO 6145-7:2010 | Identical |
| ISO 6145-7:2009 | Identical |
| ISO 14511:2001 | Measurement of fluid flow in closed conduits Thermal mass flowmeters |
| ISO 6143:2001 | Gas analysis — Comparison methods for determining and checking the composition of calibration gas mixtures |
| ISO 6142:2001 | Gas analysis Preparation of calibration gas mixtures Gravimetric method |
| ISO 7504:2015 | Gas analysis Vocabulary |
| ISO 6145-1:2003 | Gas analysis Preparation of calibration gas mixtures using dynamic volumetric methods Part 1: Methods of calibration |
| ISO/IEC Guide 98-3:2008 | Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) |
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