calibration gas mixtures Articles

  • Sonic nozzles for gas calibrators, when simplicity provides accuracy!

    Gas analyser’s calibration is a task required in many applications according to either legislation or quality systems management. This is the case for Air Pollution Monitoring or Continuous Emissions Monitoring devices installed in cabinets, for continuous analysis in remote locations. Measurements in traces range are performed and analytical devices specifications need to be validated and ...


    By LNI Swissgas

  • Precision accuracy for Gas mixtures & blends - Case study

    Precision control and measurement accuracy are the key requirements for gas mixing and blending applications. Vögtlin’s thermal mass flow regulators permit both master-slave mixtures and gas mixtures with fixed percentage proportions. ...


    By iCenta Controls Ltd

  • The Cost of Inaccurate CEM Calibration Gases

    Utility companies and other users of Continuous Emissions Monitoring (CEM) calibration gases often mistakenly consider them a commodity, making price the primary purchase consideration. Consequently, many are willing to settle for calibration gases that are ...

  • New Developments in Thermal Dispersion Mass Flow Meters: In-The-Field Compensation for Changes in Natural Gas Composition

    Introduction The flow of natural gas in pipelines is often complicated by changes in the composition of the gas. The method described in this paper solves the problem of variable composition via a new four-temperature mass flow sensor. The new (low sensor feeds its measurements into the algorithms of an advanced mathematical model that includes gas properties in its calculations. The method ...


    By Sierra Instruments, Inc.

  • Controlling gas atmospheres & Industrial gases - Case study

    Efficient control of gas atmospheres requires excellent measurement stability and a maximum level of automation. When controlled by a remote signal (eg CO2 gas sensor), Vögtlin’s thermal mass flow controllers offer a short reaction time and fast regulation for optimising control of gas atmospheres. Gas mixtures remain stable and adapt rapidly to new requirements. Benefit From The ...


    By iCenta Controls Ltd

  • Chlorine Dioxide gas detection: A comprehensive guide

    Introduction Some years agoago, the bleaching process in the paper industry was changed from using Chlorine (Cl2) as bleaching agent to Chlorine dioxide (ClO2). This was a challenge forThis posed a major challenge to industrial hygienists, as there were no sensors or detectors available that were specific to Chlorine dioxide: There was no sensor technology for gas detectors available that ...

  • FTIR gas monitor for diverse applications

    QUANTITECH, a leading supplier of environmental monitoring instrumentation, has recently supplied EURO Environmental Services in Ireland with a transportable Gasmet FTIR multiparameter gas analyser which EURO Environmental's Managing Director Geoff Fitzpatrick says, “is proving invaluable in many varied applications across a broad selection of industries.” With headquarters in Drogheda in Ireland ...


    By Quantitech Ltd

  • A neural network implemented microcontroller system for quantitative classification of hazardous organic gases in the ambient air

    In this study, a microcontroller-based gas mixture classification system is proposed to use real-time analyses of the trichloroethylene and acetone binary mixture. A Feed Forward Neural Network (FFNN) structure is performed for quantitative identification of individual gas concentrations (trichloroethylene and acetone) in their gas mixtures. The phthalocyaninecoated Quartz Crystal Microbalance ...


    By Inderscience Publishers

  • Researchers are Advancing Science Using Micro Pulse LiDAR Technology

    There are so many examples of interesting research using Micro Pulse LiDAR (MPL) technology it is difficult to decide on my favorites; however, I have chosen to highlight the following two papers because these applications for the MPL and MiniMPL address problems that are very important to global health. I’ve created a summary of each report and provided the citation in case you are ...

  • Gas detector communication technology for offshore oil and gas platforms

    In few applications is safety as important as on offshore oil and gas platforms. Explosive hazards from hydrocarbon gases and vapours are an ever-present risk, whilst toxic hydrogen sulphide gas and depleted oxygen environments can pose significant risks to personnel. Gas detectors are therefore essential to provide dependable early warning of gas hazards. Gas detectors are permanently installed ...

  • Glass manufacturer controls gas ratios - Case Study

    For a specialty glass manufacturer that constructs high-quality glass containers for the pharmaceutical and analytical industry, manual control of air and natural gas flow to the burner tip had resulted in unacceptable levels of rejected material, as well as excessive gas consumption. The process engineers were seeking methods to improve glass quality, reduce raw material waste, and increase ...


    By Sierra Instruments, Inc.

  • How Accurate is Your Monitor?

    When you consider the many regulations and guidelines that health and safety officers and first responders are faced with, it is amazing they maintain the ability to detect such a wide variety of hazardous pollutants and toxic agents.  There is no lack of regulations governing how to monitor chemical compounds, and the list grows longer all the time.  New standards for portable gas ...

  • Tuning combustion ratios in the field - Case Study

    For a major European gas manufacturer, the burner control systems in their power generators had long relied on three different technologies for natural gas mass flow measurement. These included a rotameter with integrated microprocessor to calculate  density, a turbine meter with a fixed correction factor, and a thermal mass flow meter. The rotameter's poor rangeability (1:3) and fixed ...


    By Sierra Instruments, Inc.

  • Buying time in suspended animation - Case Study

    Imagine being suspended in time—having your metabolism slow, heart rate decrease, and temperature drop. For Dr. David Kraus, Sulfide Biologist at the University of Alabama, linearity and precision matters. Dr. Kraus and other scientists are discovering that by administering small amounts of H2S, they can buy time in suspended animation. In 2005, Dr. Kraus decided to take his experiments ...


    By Sierra Instruments, Inc.

  • FTIR resolution requirements for industrial gas analyses

    FTIR Spectroscopy FTIR Spectroscopy is a widely used technique for gas analyses in industrial applications. It is a technique used in the semiconductor industry for measuring the purity of cleaning, etching, and epitreatment gases used with various process tools, reactors, and abatement devices. Among chemical companies and R&D faciltities, FTIR is applied to combustion ...


    By CIC Photonics

  • Improve gas blending accuracy and save money – Case Study

    For DataChem Laboratories, precision mass flow is crucial. DataChem, originally established in 1973 as part of the University of Utah's Research Institute, has grown into a world respected analytical testing laboratory. They have the important job of testing and identifying harmful industrial and environmental toxins—from lead paint found on our children's toys to methamphetamine dust ...


    By Sierra Instruments, Inc.

  • FTIR resolution requirements for industrial gas analyzers

    FTIR Spectroscopy is a widely used technique for gas analyses in industrial applications. It is a technique used in the semiconductor industry for measuring the purity of cleaning, etching, and epi-treatment gases used with various process tools, reactors, and abatement devices. Among chemical companies and R&D facilities, FTIR is applied to combustion thermodynamics and stack gas emissions; ...


    By CIC Photonics

  • Protecting America with Specialty Gases

      Prior to 9/11, environmental concerns largely focused on monitoring, controlling and reducing the pollution the industrial revolution had set in motion. From a specialty gas point of view, our efforts at Scott ...

  • Bringing precision to steel production - Case Study

    Aluminum and steel manufacturers use mass flow controllers to inject purification, stirring and shielding gases into their melting, casting and annealing processes. Precise, automated gas flow control reduces toxic emissions and material costs.  Final purification of aluminum is accomplished by bubbling a mixture of argon and chlorine gases through the molten metal. This process separates ...


    By Sierra Instruments, Inc.

  • Smart–Trak 2 mass flow controllers put users in control

    Next Generation of High-Performance Digital Gas Mass Flow Meters Sierra Instruments is introducing its next generation of high-performance digital gas mass flow meters and controllers—the Smart-Trak 2 Model 100. The proprietary ST2 technology in every Model 100 is based on five-year’s worth of user feedback and suggestions, says Mark McMahon, product manager for Sierra ...


    By Sierra Instruments, Inc.

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you