I.S. EN ISO 6145-1:2008
Withdrawn
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GAS ANALYSIS - PREPARATION OF CALIBRATION GAS MIXTURES USING DYNAMIC VOLUMETRIC METHODS - PART 1: METHODS OF CALIBRATION
Hardcopy , PDF
30-04-2020
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.
Dates of withdrawal of national standards are available from NSAI.
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Calibration methods
4.1 General
4.2 Description of primary or potentially primary
measuring devices
4.3 Measurements on the final mixture
5 Techniques for preparation of gas mixtures calibrated
by the methods described in Clause 4
5.1 General
5.2 Volumetric pumps
5.3 Continuous injection
5.4 Capillary
5.5 Critical orifices
5.6 Thermal mass flow controllers
5.7 Diffusion
5.8 Saturation
5.9 Permeation
Annex A (normative) Volume measurement by weighing
the water content
Annex B (informative) Description of secondary devices
which need calibration against primary
devices
Bibliography
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