UNI EN ISO 6145-4 : 2009
Current
The latest, up-to-date edition.
GAS ANALYSIS - PREPARATION OF CALIBRATION GAS MIXTURES USING DYNAMIC VOLUMETRIC METHODS - PART 4: CONTINUOUS SYRINGE INJECTION METHOD
22-01-2009
1 Scope
2 Normative references
3 Principle
4 Application to preparation of gas mixtures
4.1 Description of the experimental procedure
4.2 Area of validity
4.3 Operating conditions
5 Expression of results
5.1 Volume fraction
5.2 Sources of uncertainty
5.3 Uncertainty of volume fraction
Annex A (informative) - Pre-mixed gases for preparation
of mixtures of high dilution
Annex B (informative) - Example of apparatus for
preparation of calibration gas mixtures
Annex C (informative) - Practical hints
Annex D (informative) - Example of the determination
of the uncertainty in the concentration of
a calibration gas mixture prepared by the
continuous injection method
Bibliography
Describes a method for continuous production of calibration gas mixtures, containing two or more components, from pure gases or other gas mixtures by continuous injection of the calibration component(s) into a complementary gas stream by means of a syringe.
| Committee |
CT 101
|
| DocumentType |
Standard
|
| PublisherName |
Ente Nazionale Italiano di Unificazione (UNI)
|
| Status |
Current
|
| Standards | Relationship |
| ISO 6145-4:2004 | Identical |
| EN ISO 6145-4:2008 | Identical |
| ISO/IEC Guide 98:1993 | Guide to the expression of uncertainty in measurement (GUM) |
| ISO 6145-7:2009 | Gas analysis Preparation of calibration gas mixtures using dynamic volumetric methods Part 7: Thermal mass-flow controllers |
| ISO 6143:2001 | Gas analysis — Comparison methods for determining and checking the composition of calibration gas mixtures |
| 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 |
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