Calibration Systems Articles

  • The ‘Swiss Army Knife’ of Mass Flow Controllers

    Did you ever wish your mass flow controller could do it all? You’re not alone. End users ranging from machine builders to laboratory researchers are often faced with the challenge of needing flow measurement and control equipment for a wide variety of applications. Many customers call the SmartTrak 100 mass flow ...


    By Sierra Instruments, Inc.

  • Primary Standard Gas Flow Calibration—The Only Guarantee of Accuracy

    At Sierra, we have a saying: “An instrument’s accuracy is only as good as its calibration.” The accuracy of your mass flow controller (MFC) is essential in assuring the efficiency, performance, and quality of your flow meter. In many cases, if your instrumentation is not calibrated, then a decline in performance is possible due to ...


    By Sierra Instruments, Inc.

  • Lost in calibration: why people still do not calibrate their models, and why they still should – a case study from urban drainage modelling

    From a scientific point of view, it is unquestioned that numerical models for technical systems need to be calibrated. However, in sufficiently calibrated models are still used in engineering practice. Case studies in the scientific literature that deal with urban water management are mostly large cities, while little attention is paid to the differing boundary conditions of smaller ...


    By IWA Publishing

  • Reducing Costs of Steam Flow Measurement

    Traditionally, steam flow has been measured with a differential pressure device. This is typically an orifice plate. However, such devices are inherently volumetric flow measurements. As we have discussed in previous blog posts, changes in pressure and temperature ...


    By Sierra Instruments, Inc.

  • Case study - TPH in produced sand for overboard discharge

    Customer uses TD-500D to measure TPH concentrations in produced sand on an offshore oil platform in Malaysia.  The sand contains high levels of crude oils and must be treated on-site prior to dumping it overboard.  The TD-500D was calibrated to Sitelab's TPH calibration kit, product CAL-056.  Methanol solvent was used to extract the samples.  For comparison, samples were also ...


    By Sitelab Corporation

  • Measurement Science and Technology Paper - Potential for improved radiation thermometry measurement uncertainty through implementing a primary scale in an industrial laboratory

    A primary temperature scale requires realising a unit in terms of its definition. For high temperature radiation thermometry in terms of the International Temperature Scale of 1990 this means extrapolating from the signal measured at the freezing temperature of gold, silver or copper using Planck's radiation law. The difficulty in doing this means that primary scales above 1000 °C require ...


    By AMETEK Land

  • How to Set Up an Outdoor Sound Monitoring Kit

    What do demolition sites, construction, industrial and mechanical equipment, outdoor events, transportation facilities, traffic, and air crafts have in common? They all cause noise pollution. Environmental noise can cause adverse effects to those around it which is why it is critical monitor. At RAECO Rents we make outdoor sound monitoring easy! ...


    By Raeco Rents

  • Providing Precision Flow Control Solutions for Critical Biomolecular Research

    When scientists at the University of Nottingham’s Centre for Biomolecular Sciences (CBS) in the United Kingdom needed instrumentation to control the flow of gases in their research, they turned to Litre Meter, a UK distributor for Sierra Instruments, and the SmartTrak 100 series mass flow meters and ...


    By Sierra Instruments, Inc.

  • Case study - Texas crude oil in soil sites

    Sunset Well Service, Inc. is an environmental contractor located in the Midland/Odessa area of Texas. They use their UVF-3100D analyzer to help excavate and remediate soils contaminated by produced water and crude oil. Laboratories in Texas test TPH using the TX 1005 GC-FID Method. This method is similar to U.S. EPA Method 8015M, but reports the GRO, DRO and ORO fractions separately. Soils from ...


    By Sitelab Corporation

  • Case study - Canada crude oil sites

    The Canadian Council of Ministers of the Environment requires laboratories to use the CCME’s Petroleum Hydrocarbon (PHC) Method, where GC-FID instrumentation is used to report VPH and EPH hydrocarbon fractions. Sitelab’s popular Extended Diesel Range Organics (EDRO) test typically detects hydrocarbons in the C10 to C36 carbon range, but the UVF will pick up heavier compounds up to ...


    By Sitelab Corporation

  • Case study - EDRO in soil at wharf remediation site

    Sitelab Calibration Kit CAL-042 is used for EDRO analysis. The UVF-3100 detects hydrocarbons in the C10-C36 range. A Licensed Site Professional (LSP) used Sitelab to investigate a commercial waterfront property, contaminated with a plume of LNAPL resulting from fuel tanks which once stored heating oil, diesel and gasoline dating back to the 1950s. The site is in Massachusetts, where laboratories ...


    By Sitelab Corporation

  • Case study - EPH in soil with diesel and home heating oils

    Sitelab’s UVF-3100 analyzer is a popular tool when excavating soils contaminated by fuel oils from underground storage tanks (USTs). These studies show the accuracy testing samples for Extractable Petroleum Hydrocarbons, EPH C11- C22 aromatic hydrocarbons. Samples are extracted in solvent using test kits and measured on the UVF analyzer’s EPH optics, calibrated to Sitelab’s PAH ...


    By Sitelab Corporation

  • Case study - NAPL forensics analysis at refinery site in Kansas

    An environmental consultant at Subsurface Environmental Solutions, LLC used Sitelab to fingerprint a large plume of Non Aqueous Phase Liquids (NAPL) located at a former oil refinery in Kansas. The plume is commingled with gasoline, diesel, crude oil and other petroleum products. Sitelab’s portable UVF-3100D analyzer is fitted with optical filters which can measure the C6 to C10 gasoline ...


    By Sitelab Corporation

  • Case study - Nigeria crude oil in soil site

    Safic Technologies, Ltd. - Port Harcourt A pilot study was conducted testing soil samples collected from a pipeline spill. Split samples were sent to Sitelab for EDRO analysis and results were the same. Samples were also sent to a Nigerian lab and a highly reputable lab in the United States for confirmation. After testing the samples a second time, the American lab got better results. ...


    By Sitelab Corporation

  • Case study - EPH in soil with No. 6 fuel oil

    No. 6 fuel oils (heavy fuel oil, bunker C oil) is often used in industry for heat, steam or power generation. A consultant used Sitelab to investigate two different spill sites contaminated with subsurface plumes of NAPL resulting from leaking underground storage tanks (USTs). Soils were collected from borings using a drill rig and field screened for their EPH aromatic content. Split samples ...


    By Sitelab Corporation

  • Commonly Asked Questions About Calibration Gas

    Argus-Hazco's Becky Schneider answers the most commonly asked questions about calibration gas. The questions range from disposal and refilling protocol to shelf life to MSDS availability. Argus-Hazco offers a complete line of reactive and non-reactive gases in cylinder sizes that range from 17 to 221 liters. We have a large collection of common blends and we can also accommodate virtually any ...


    By Argus-Hazco

  • Lake water levels for calibration of the S-HYPE model

    Lake water levels are easy to measure, and can be seen as a transformation of discharge. Water level measurements from 42 lakes in Sweden were analysed, and eight of these lakes were modelled using the Swedish S-HYPE model. The objective was to test if a hydrological model can be calibrated using water level data instead of discharge. A semi-analytical lake routing was developed to resolve ...


    By IWA Publishing

  • Effective Use of the ACQUITY QDa Mass Detector with Your LC: A Q and A with Dr. Tom Wheat

    I recently presented a webinar describing some techniques and tools used for effectively using the QDa Mass Detector with liquid chromatography systems. Several attendees submitted questions that may be of general interest to a broader audience. It is better, as you said, to use negative mode for ...


    By Waters Corporation

  • Measuring moisture content in medical oxygen cylinders - Case Study

    Since 2003, Medical Gas Solutions Ltd (MGS) based in North Wales have been providing medical gases and devices to the Healthcare Industry nationwide. In 2012 they expanded their product portfolio to include industrial gases. MGS design and manufacture lightweight, high pressure valve, medical oxygen cylinders for the ambulance service, hospitals, medical centres and other emergency services. In ...


    By Systech Instruments Ltd

  • Using SWAT to simulate streamflow in Huifa River basin with ground and Fengyun precipitation data

    High-resolution satellite precipitation products, which can provide a reasonable depiction of the spatial extent of rainfall, have been increasingly used to model hydrological processes. In this study, we introduced important satellite rainfall data – Fengyun (FY) precipitation product, and evaluated the data through streamflow simulation using the Soil and Water Assessment Tool model in ...


    By IWA Publishing

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