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    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

    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

    NRC Regulators...more options and uses than you may think.

    Greg Shires

    The typical application for bump testing or calibrating your instrument using an NRC regulator requires a fixed flow 0.5 litre/min regulator, a bit of tubing; a calibration cup; your gas mixture; and you are good to go.

    There is nothing wrong with that, provided you are using the correct flow rate, regulator material and tubing. If your instrument has an internal pump, then you should be using the On-Demand Flow Regulator

    There are several regulators which can be used with NRC gas mixtures. Here are a few ideas for making your bump test or calibration system more efficient and functional.

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    Topics: Gas Detection, Gas Control & Regulator Selection

    High Accuracy Calibration with the MICRO300 Precision Regulator

    Paul Fry

    When producing a specialty gas mixture, most of the time taken to manufacture it goes into cylinder preparation to ensure that the mixture is stable. This is the single most important aspect in a quality gas mixture. If what comes out of the cylinder is not what is described on the label it will result in a poor calibration. Much time, testing, and research is invested in the development of techniques related to the interaction with cylinders and valves, solely to ensure the stability of mixtures. In general, it includes:

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    Topics: Specialty Gas Applications, Gas Control & Regulator Selection

    The Importance of Purging

    Paul Fry

    How to choose the correct purge system for your application.

    Purging is an important part of a good calibration procedure and should always be practised when handling dangerous gases. Purging ensures that you have control over which gases are in your gas delivery system, and therefore which gases are being exposed to internal components, sensors, or other equipment. It also helps to prevent unwanted reactions from taking place, which can greatly increase the service life of related components.

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    Topics: Gas Control & Regulator Selection

    Gas Distribution Systems for Non-Docking Station Applications

    Greg Shires

    The GDS-100 Gas Distribution System was originally designed to provide an efficient method of utilizing high pressure/large volume gas mixtures with gas detection docking stations.

    Although excellent for this application the GDS-100 has also proven to be a beneficial stand-alone system for both calibration and bump testing applications.

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    Topics: Gas Control & Regulator Selection

    Calibrating Process Analysers with the On-Demand Flow Regulator.

    Greg Shires

    The ODFR-1001 is an On-Demand Flow Regulator providing flows between 0.3 – 3 litres per minute. 

    This regulator is ideal for calibrating or testing process analysers which have an internal pump to draw in the gas sample.

    The on-demand flow regulator is available in a low pressure version, for use with disposable gas cylinders up to 70 bar, and a high pressure version, for cylinders with pressure up to 300 bar. Both versions work identically. 

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    Topics: Gas Control & Regulator Selection