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EN ISO 6145-6:2017
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Gas analysis - Preparation of calibration gas mixtures using dynamic methods - Part 6: Critical flow orifices (ISO 6145-6:2017)
16-08-2017
ISO 6145-6:2017 specifies a method for the dynamic preparation of calibration gas mixtures containing at least two gases (usually one of them is a complementary gas) from pure gases or gas pre-mixtures using critical flow orifices systems.The method applies principally to the preparation of mixtures of non-reactive gases that do not react with any of the materials forming the gas circuit inside the critical flow orifices system or auxiliary equipment. It has the merit of allowing multi-component mixtures to be prepared as readily as binary mixtures if an appropriate number of critical flow orifices are used.By selecting appropriate combinations of critical flow orifices, a dilution ratio of 1 × 104 is achievable.Although it is more particularly applicable to the preparation of gas mixtures at atmospheric pressure, the method also offers the possibility of preparing calibration gas mixtures at pressures greater than atmospheric. The upstream pressure will need to be at least two times higher than downstream pressure.The range of flow rates covered by this document extends from 1 ml/min to 10 l/min.
Committee |
CEN/TC 238
|
DocumentType |
Standard
|
PublisherName |
Comite Europeen de Normalisation
|
Status |
Current
|
Standards | Relationship |
DIN EN ISO 6145-6:2008-11 | Identical |
DIN EN ISO 6145-6:2017-12 | Identical |
SS-EN ISO 6145-6:2017 | Identical |
NEN EN ISO 6145-6 : 2017 | Identical |
UNI EN ISO 6145-6:2017 | Identical |
DIN EN ISO 6145-6:2016-05 (Draft) | Identical |
UNE-EN ISO 6145-6:2008 | Identical |
NF EN ISO 6145-6 : 2017 | Identical |
I.S. EN ISO 6145-6:2017 | Identical |
PN EN ISO 6145-6 : 2017 | Identical |
NBN EN ISO 6145-6 : 2009 | Identical |
NS EN ISO 6145-6 : 2017 | Identical |
BS EN ISO 6145-6:2017 | Identical |
UNE-EN ISO 6145-6:2018 | Identical |
UNI EN ISO 6145-6 : 2009 | Identical |
SN EN ISO 6145-6:2017 | Identical |
ISO 6145-6:2017 | Identical |
DIN EN 14212 E : 2012 | AMBIENT AIR - STANDARD METHOD FOR THE MEASUREMENT OF THE CONCENTRATION OF SULPHUR DIOXIDE BY ULTRAVIOLET FLUORESCENCE |
I.S. EN 838:2010 | WORKPLACE EXPOSURE - PROCEDURES FOR MEASURING GASES AND VAPOURS USING DIFFUSIVE SAMPLERS - REQUIREMENTS AND TEST METHODS |
EN 1076:2009 | Workplace exposure - Procedures for measuring gases and vapours using pumped samplers - Requirements and test methods |
BS EN 60079-29-1:2007 | Explosive atmospheres Gas detectors. Performance requirements of detectors for flammable gases |
UNE-EN 60079-29-1:2017 | Explosive atmospheres - Part 29-1: Gas detectors - Performance requirements of detectors for flammable gases |
DIN EN 1076:2010-04 | Workplace exposure - Procedures for measuring gases and vapours using pumped samplers - Requirements and test methods |
DIN EN 14211 E : 2012 | AMBIENT AIR - STANDARD METHOD FOR THE MEASUREMENT OF THE CONCENTRATION OF NITROGEN DIOXIDE AND NITROGEN MONOXIDE BY CHEMILUMINESCENCE |
DIN EN 14212:2012-11 | Ambient air - Standard method for the measurement of the concentration of sulphur dioxide by ultraviolet fluorescence |
DIN EN 14625:2012-12 | AMBIENT AIR - STANDARD METHOD FOR THE MEASUREMENT OF THE CONCENTRATION OF OZONE BY ULTRAVIOLET PHOTOMETRY |
DIN EN 14211:2012-11 | Ambient air - Standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence |
DIN EN 14662-3:2016-02 | AMBIENT AIR - STANDARD METHOD FOR THE MEASUREMENT OF BENZENE CONCENTRATIONS - PART 3: AUTOMATED PUMPED SAMPLING WITH IN SITU GAS CHROMATOGRAPHY |
DIN EN 14626:2012-12 | Ambient air - Standard method for the measurement of the concentration of carbon monoxide by non-dispersive infrared spectroscopy |
BS EN 14211:2012 | Ambient air. Standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence |
UNE-EN 14662-3:2016 | Ambient air - Standard method for the measurement of benzene concentrations - Part 3: Automated pumped sampling with in situ gas chromatography |
I.S. EN 14211:2012 | AMBIENT AIR - STANDARD METHOD FOR THE MEASUREMENT OF THE CONCENTRATION OF NITROGEN DIOXIDE AND NITROGEN MONOXIDE BY CHEMILUMINESCENCE |
I.S. EN 14625:2012 | AMBIENT AIR - STANDARD METHOD FOR THE MEASUREMENT OF THE CONCENTRATION OF OZONE BY ULTRAVIOLET PHOTOMETRY |
I.S. EN 14626:2012 | AMBIENT AIR - STANDARD METHOD FOR THE MEASUREMENT OF THE CONCENTRATION OF CARBON MONOXIDE BY NON-DISPERSIVE INFRARED SPECTROSCOPY |
I.S. EN 14212:2012 | AMBIENT AIR - STANDARD METHOD FOR THE MEASUREMENT OF THE CONCENTRATION OF SULPHUR DIOXIDE BY ULTRAVIOLET FLUORESCENCE |
I.S. EN 14662-3:2015 | AMBIENT AIR - STANDARD METHOD FOR THE MEASUREMENT OF BENZENE CONCENTRATIONS - PART 3: AUTOMATED PUMPED SAMPLING WITH IN SITU GAS CHROMATOGRAPHY |
VDI 2100 Blatt 3:2011-10 | Determination of gaseous compounds in ambient air - Determination of indoor air pollutants - Gas chromatographic determination of organic compounds - Active sampling by accumulation on adsorbents - Thermal desorption |
DIN EN 14625 E : 2012 | AMBIENT AIR - STANDARD METHOD FOR THE MEASUREMENT OF THE CONCENTRATION OF OZONE BY ULTRAVIOLET PHOTOMETRY |
DIN EN 14626 E : 2012 | AMBIENT AIR - STANDARD METHOD FOR THE MEASUREMENT OF THE CONCENTRATION OF CARBON MONOXIDE BY NON-DISPERSIVE INFRARED SPECTROSCOPY |
BS EN 1076:2009 | Workplace exposure. Procedures for measuring gases and vapours using pumped samplers. Requirements and test methods |
EN 14662-3:2015 | Ambient air - Standard method for the measurement of benzene concentrations - Part 3: Automated pumped sampling with in situ gas chromatography |
UNI EN 1076 : 2010 | WORKPLACE EXPOSURE - PROCEDURES FOR MEASURING GASES AND VAPOURS USING PUMPED SAMPLERS - REQUIREMENTS AND TEST METHODS |
UNI EN 14625 : 2012 | AMBIENT AIR - STANDARD METHOD FOR THE MEASUREMENT OF THE CONCENTRATION OF OZONE BY ULTRAVIOLET PHOTOMETRY |
UNI EN 14626 : 2012 | AMBIENT AIR QUALITY - STANDARD METHOD FOR THE MEASUREMENT OF THE CONCENTRATION OF CARBON MONOXIDE BY NONDISPERSIVE INFRARED SPECTROSCOPY |
UNI EN 14211 : 2012 | AMBIENT AIR - STANDARD METHOD FOR THE MEASUREMENT OF THE CONCENTRATION OF NITROGEN DIOXIDE AND NITROGEN MONOXIDE BY CHEMILUMINESCENCE |
UNI EN 838 : 2010 | WORKPLACE EXPOSURE - PROCEDURES FOR MEASURING GASES AND VAPOURS USING DIFFUSIVE SAMPLERS - REQUIREMENTS AND TEST METHODS |
DIN EN 838:2010-05 | Workplace exposure - Procedures for measuring gases and vapours using diffusive samplers - Requirements and test methods |
UNE-EN 14626:2013 | Ambient air - Standard method for the measurement of the concentration of carbon monoxide by non-dispersive infrared spectroscopy |
BS EN 14662-3:2015 | Ambient air. Standard method for the measurement of benzene concentrations Automated pumped sampling with in situ gas chromatography |
UNE-EN 14625:2013 | Ambient air - Standard method for the measurement of the concentration of ozone by ultraviolet photometry |
BS EN 14625:2012 | Ambient air. Standard method for the measurement of the concentration of ozone by ultraviolet photometry |
UNE-EN 14211:2013 | Ambient air - Standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence |
BS EN 838:2010 | Workplace exposure. Procedures for measuring gases and vapours using diffusive samplers. Requirements and test methods |
UNE-EN 14212:2013 | Ambient air - Standard method for the measurement of the concentration of sulphur dioxide by ultraviolet fluorescence |
I.S. EN 1076:2009 | WORKPLACE EXPOSURE - PROCEDURES FOR MEASURING GASES AND VAPOURS USING PUMPED SAMPLERS - REQUIREMENTS AND TEST METHODS |
EN 14626:2012 | Ambient air - Standard method for the measurement of the concentration of carbon monoxide by non-dispersive infrared spectroscopy |
EN 14212:2012/AC:2014 | AMBIENT AIR - STANDARD METHOD FOR THE MEASUREMENT OF THE CONCENTRATION OF SULPHUR DIOXIDE BY ULTRAVIOLET FLUORESCENCE |
EN 14211:2012 | Ambient air - Standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence |
EN 838:2010 | Workplace exposure - Procedures for measuring gases and vapours using diffusive samplers - Requirements and test methods |
EN 14625:2012 | Ambient air - Standard method for the measurement of the concentration of ozone by ultraviolet photometry |
BS EN 14212:2012 | Ambient air. Standard method for the measurement of the concentration of sulphur dioxide by ultraviolet fluorescence |
BS EN 14626:2012 | Ambient air. Standard method for the measurement of the concentration of carbon monoxide by non-dispersive infrared spectroscopy |
ISO 12963:2017 | Gas analysis — Comparison methods for the determination of the composition of gas mixtures based on one- and two-point calibration |
ISO 9300:2005 | Measurement of gas flow by means of critical flow Venturi nozzles |
ISO 16664:2017 | Gas analysis — Handling of calibration gases and gas mixtures — Guidelines |
ISO 6143:2001 | Gas analysis — Comparison methods for determining and checking the composition of calibration gas mixtures |
ISO 19229:2015 | Gas analysis Purity analysis and the treatment of purity data |
ISO 14912:2003 | Gas analysis — Conversion of gas mixture composition data |
VDI 3490 Blatt 16:1994-10 | Measurement of gases - Calibration gas mixtures - Dynamic preparation with critical orifice systems |
ISO 7504:2015 | Gas analysis Vocabulary |
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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