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    Cylinder Options for Liquefied Gas Mixtures

    Matt Shaw

    Liquefied gas mixtures, or ‘liquid mixtures,’ are often used for calibrations where the application demands calibration with a ‘heavy’ or longer-chain hydrocarbon (see Demystifying hydrocarbon gas mixtures in non-refillable cylinders). Liquid mixtures have the advantage of closely matching the product being analysed (e.g. stream gas), while also offering increased efficiency by allowing an increased number of calibrations with the same cylinder, when compared to a gaseous mixture.

    While liquid mixtures do have significant advantages, there are some disadvantages to consider. As is described in our previous blog on Issues with liquefied calibration gases, there are rules that can be followed to mitigate the issues. One of those being choice of cylinder type.

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    Topics: Gas & Cylinder Selection, Oil & Gas

    Calibration Gas for Nitric Oxide, Nitrogen Dioxide, and Nitrogen Oxides

    Greg Shires

    Nitric oxide (NO), nitrogen dioxide (NO2), oxides of nitrogen or nitrogen oxides (NOX) are by products of several processes including incomplete diesel combustion, power plant production & incineration, just to name a few.

    There are often questions regarding which calibration gas to use, what is the correct balance gas, and/or what regulator and tubing should be used.

    Let us get the information on these calibration gases correct.   

    Here are some recommendations to follow:

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    Topics: Gas & Cylinder Selection, Gas Control & Regulator Selection

    FAQs About Hydrogen Gas Generation.

    Dr. Nicole Pendini

    Dr Nicole R Pendini* provides answers to several frequently asked questions collated from worldwide health, environmental, industrial, testing, medical and research laboratories regarding the safe use of hydrogen generators in the workplace.

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    Topics: Gas & Cylinder Selection, Gas Generators

    How to Ensure Breathalyser Accuracy.

    Maria Pamboris

    Alcohol impaired drivers risk not only their own lives but the lives of others. They can face large fines, loss of license and even imprisonment. By removing these drivers, we reduce the potential for serious injury or fatal collisions on our roads.

    But how do we do that?

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    Topics: Gas & Cylinder Selection, Gas Detection, Specialty Gas Applications

    SilcoNert® - Better performance, better results.

    Matt Shaw

    What is it?

    SilcoNert® is a non-reactive silicon coating process that makes flow paths inert for better process control, consistent sampling, and analytical results. The patented chemical vapor deposition process bonds the coating to stainless steel; alloy; ceramic; and glass, making a high-tolerance, durable coating even under extreme temperatures and pressures.

    SilcoNert® is made by SilcoTek Coatings, "the world's leading provider of high performance inert coatings applied by chemical vapor deposition (CVD)." 

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    Topics: Gas & Cylinder Selection, Gas Control & Regulator Selection, Oil & Gas

    Material Selection for Gases in Non-Refillable Cylinders

    Alex Singer

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    Topics: Gas & Cylinder Selection, Gas Control & Regulator Selection

    Ozone for Water Treatment

    Greg Shires

    Ozone can be used for the treatment of water in multiple industries including municipal water treatment; wastewater; bottled water, wineries and breweries; aquaculture; drinking water for livestock; hydroponics; water treatment in cooling towers and air washers; public swimming pools; aquariums and zoos; commercial laundry facilities; soil/groundwater remediation and more.

    Ozone is typically generated using the electrical discharge method where oxygen is exposed to high voltage resulting in oxygen molecules colliding with O2 to create the unstable O3 molecules. 

    Ozone is 13 times more soluble than oxygen. This solubility makes ozone very useful in many water treatment applications. Ozone can be dissolved in water much easier than oxygen although it does still require mechanical mixing.

    Ozone is one of the most effective oxidants on earth, making it better than most chemical alternatives at breaking down contaminates and killing bacteria.

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    Topics: Gas & Cylinder Selection, Gas Detection, Water & Wastewater Treatment

    Calibration Gas Solutions for Measuring Nitrogen Dioxide (NO2)

    Greg Shires

    Nitrogen dioxide (NO2) is one of a group of highly reactive gases known as oxides of nitrogen or nitrogen oxides (NOx). Other nitrogen oxides include nitrous acid and nitric acid. NO2 is used as the indicator for the larger group of nitrogen oxides.

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    Topics: Gas & Cylinder Selection, Gas Hazards & Dangerous Goods, Gas Detection