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SI-traceable mercury measurement results with the VSL primary mercury gas standard

Jun 01 2021
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A primary mercury gas standard was developed at VSL to establish an SI-traceable reference point for mercury concentrations at emission and background levels in the atmosphere. The primary gas standard has been developed as a mercury gas generator to establish metrological traceability of mercury concentration measurement results, based upon a gravimetric approach, for ambient air levels as well as higher concentrations.
The working principle of the primary mercury vapour generator is based on diffusion according to ISO 6145-8:2005. Specially developed stainless-steel diffusion cells are filled with approximately 2 mL of elemental mercury. The mercury vapour diffuses from the cell through a capillary. To obtain several diffusion ranges, cells with different capillary diameters are used. By weighing the diffusion cells at regular time intervals on a high-resolution analytical balance the mercury mass flow rate ....

United States , European Union Horizon , National Institute Of Standards , European Metrology Programme For Innovation , Atmospheric Measurement Techniques , National Institute , Laser Absorption Spectroscopy , European Metrology Programme , Participating States , European Union , ஒன்றுபட்டது மாநிலங்களில் , ஐரோப்பிய தொழிற்சங்கம் அடிவானம் , தேசிய நிறுவனம் ஆஃப் தரநிலைகள் , ஐரோப்பிய அளவியல் ப்ரோக்ராம் க்கு கண்டுபிடிப்பு , வளிமண்டலம் அளவீட்டு நுட்பங்கள் , தேசிய நிறுவனம் , லேசர் ஸ்பெக்ட்ரோஸ்கோபி , ஐரோப்பிய அளவியல் ப்ரோக்ராம் , ஐரோப்பிய தொழிற்சங்கம் ,

SI-traceable mercury measurement results with the VSL primary mercury gas standard

Apr 28 2021
A primary mercury gas standard was developed at VSL to establish an SI-traceable reference point for mercury concentrations at emission and background levels in the atmosphere. The primary gas standard has been developed as a mercury gas generator to establish metrological traceability of mercury concentration measurement results, based upon a gravimetric approach, for ambient air levels as well as higher concentrations.
The working principle of the primary mercury vapour generator is based on diffusion according to ISO 6145-8:2005. Specially developed stainless-steel diffusion cells are filled with approximately 2 mL of elemental mercury. The mercury vapour diffuses from the cell through a capillary. To obtain several diffusion ranges, cells with different capillary diameters are used. By weighing the diffusion cells at regular time intervals on a high-resolution analytical balance the mercury mass flow rate (diffusion) is determined gravimetr ....

United States , European Union Horizon , National Institute Of Standards , European Metrology Programme For Innovation , Atmospheric Measurement Techniques , National Institute , Laser Absorption Spectroscopy , European Metrology Programme , Participating States , European Union , ஒன்றுபட்டது மாநிலங்களில் , ஐரோப்பிய தொழிற்சங்கம் அடிவானம் , தேசிய நிறுவனம் ஆஃப் தரநிலைகள் , ஐரோப்பிய அளவியல் ப்ரோக்ராம் க்கு கண்டுபிடிப்பு , வளிமண்டலம் அளவீட்டு நுட்பங்கள் , தேசிய நிறுவனம் , லேசர் ஸ்பெக்ட்ரோஸ்கோபி , ஐரோப்பிய அளவியல் ப்ரோக்ராம் , ஐரோப்பிய தொழிற்சங்கம் ,

Atmospheric Chemistry and Physics / Atmospheric Measurement Techniques Journal

Mar 04 2021 Read 370 Times
An important issue now is the publication of the presentations from the ICMGP 2019 in peer-reviewed journals. Dr. Ashu Dastoor agreed to organise a special issue of the Atmospheric Chemistry and Physics Journal (ACP) and act as a Guest Editor for this issue. The ACP is a prestigious and open access peer-reviewed journal.
If you are interested to publish your presentation in ACP, please, contact Dr. Dastoor.
This will be an interactive open-access European Geosciences Union(EGU) Inter-Journal Special Issue: Atmospheric Chemistry and Physics (ACP) and Atmospheric Measurement Techniques (AMT).
Inter-journal Special Issue (ACP/AMT): Research results from the 14th International Conference on Mercury as a Global Pollutant (ICMGP 2019), MercOx project and iGOSP and iCUPE projects of ERA-PLANET in support of Minamata Convention on Mercury ....

Milena Horvat , Ralf Ebinghaus , Nicola Pirrone , Ashu Dastoor , International Conference On Mercury , Minamata Convention On Mercury , European Geosciences Union , Physics Journal , Guest Editor , Inter Journal Special Issue , Atmospheric Chemistry , Atmospheric Measurement Techniques , Special Issue , International Conference , Global Pollutant , Minamata Convention , Comprehensive Understanding , Polar Environments , Integrated Global Observing Systems , Persistent Pollutants , Issue Editors , Jozef Pacyna , மைலேனா ஹார்வட் , அஷு தஸ்தூர் , சர்வதேச மாநாடு ஆன் பாதரசம் , மினாமாட்டா மாநாடு ஆன் பாதரசம் ,