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calibration gas standard Applications

  • Production of high-accuracy ethanol calibration gas

    Fast and highly accurate analyzer system was needed for ethanol calibration gas standards. Precisive`s OXS-3100-HC configured for ethanol gas was selected due to its sub-ppm repeatability and high stability.

    By MKS Instruments, Inc. based in Andover, MASSACHUSETTS (USA).

  • Ambient Monitor Gas Calibration with Ozone Generators

    Environics® Ambient Monitor Calibrator with Ozone Generators facilitate dynamic calibration of ambient air analyzers. These instruments automatically perform zero, precision, span and multi-point calibrations using NO, NO2, SO2, CO, O3, hydrocarbons and other gases of interest. All ozone generators are factory calibrated using a NIST traceable ozone standard. The Series 6100, Series 6103 and Series 9100 all meet or exceed U.S. Environmental Protection Agency requirements.

    By Environics, Inc. based in Tolland, CONNECTICUT (USA).

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    Gas analysis & monitoring system for gas generation

    The gas generators for calibration based on the use of “Method of Permeation Tubes.”. The permeation tubes are sealed capsules containing a small amount of the component that is in contact with a permeable membrane stable. The permeation through the membrane produces a vapor of the compound of the component of small quantity, very stable as a stream in time. This permeate stream by mixing with a dilution gas controlled and precise (for example nitrogen) creates a mixture in track at the desired concentration. The flow of the permeate is measured metrically through severe weight loss of the tube thus ensuring a standard high precision.

    By ETG Risorse e Tecnologia based in Montiglio, ITALY.

  • Integrated real-time gas analysis solution for specialty gases industry

    CIC Photonics’ extensive experience with gas analysis has also included what the industry refers to as Specialty Gases, as distinguished from Semi Gases, Electronic Specialty Gases, and Industrial Gases. Specialty Gases are high purity gases used across many applications by researchers, by government agencies, and by commercial businesses. Included among these users and applications are: hospitals for medical gases; environmental labs and testing companies for blends of protocol gas mixtures; calibration gases; spectroscopy standards; gas composition measurements and confirmations; and others.

    By CIC Photonics, Inc. based in Albuquerque, NEW MEXICO (USA).

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    Testing Fume Hood Flow Dynamics using SF6 as a Tracer Gas

    A safe laboratory environment requires an effective method for clearing toxic material from fume hoods. Since all handling of toxic materials is completed in these hoods, it is critical to have a procedure to evaluate their operation to assure adequate protection for laboratory workers. The InfraRan Specific Vapor Analyzer, factory calibrated for SF6, is an ideal instrument for measuring fume hood efficiency in accordance with ASHRAE and other standards. Manufacturers identify the flow dynamics (factors that affect air flow in the hood and performance with air) using the ratings AM (as manufactured), AI (as installed), and AU (as used). A fume hood evaluation conducted under its operational environment is critical, as these tests will indicate any installation shortcomings as well as direct workers in proper laboratory hood techniques.

    By Spectro Scientific based in Chelmsford, MASSACHUSETTS (USA).

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    Capabilities of the Adsorbent Tube Injector System (ATIS™)

    The Adsorbent Tube Injector System (ATIS) was developed at Supelco® by R&D Scientists, as a tool to assist in our comprehensive adsorbent research for thermal desorption tubes. The ATIS provides an efficient means of transferring calibration standards in either the gas or liquid phase onto the adsorbent packed tubes. The ATIS employs the technique of flash vaporization to vaporize the sample in a continuous flow of inert gas; the inert gas carries the sample to the tube. The sample pathway of the ATIS is constructed of glass and stainless steel. The calibration standard is injected by a syringe through a replaceable septum in the center of the injection glassware, which is heated. After enough time has elapsed, typically less than five minutes, the tube is removed from the ATIS and analyzed using the appropriate analytical technique for that adsorbent tube.

    By Sigma-Aldrich Co., LLC based in Bellefonte, PENNSYLVANIA (USA).

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