I.S. EN ISO 6145-4:2008
Current
The latest, up-to-date edition.
GAS ANALYSIS - PREPARATION OF CALIBRATION GAS MIXTURES USING DYNAMIC VOLUMETRIC METHODS - PART 4: CONTINUOUS SYRINGE INJECTION METHOD
Hardcopy , PDF
English
01-01-2008
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
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
Provides 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.
| DocumentType |
Standard
|
| Pages |
28
|
| PublisherName |
National Standards Authority of Ireland
|
| 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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