Test Chambers Articles

  • Permeation testing of flexible food packaging films - Case Study

    FFP Packaging Solutions specialise in high quality printed and plain flexible packaging, heat seal lidding films and films for high temperature/oven use. Offering the food industry innovative flexible packaging solutions, FFP ensure that all the film materials used have been vigorously tested to ensure that the quality of the packaging is stable when used in different environmental conditions ...


    By Systech Instruments Ltd

  • What is an anechoic chamber and how quiet can it be?

    One of the things that we often talk about when we’re running our CPTC (Cirrus Product Training Courses) is how our hearing works and we often end up talking about how, if there’s no ambient sound, we can feel uncomfortable and can become disoriented very quickly. One of the best (or maybe the worst) places to experience this is in ...


    By Cirrus Research plc

  • Optimization of lamp arrangement in a closed-conduit UV reactor based on a genetic algorithm

    The choice for the arrangement of the UV lamps in a closed-conduit ultraviolet (CCUV) reactor significantly affects the performance. However, a systematic methodology for the optimal lamp arrangement within the chamber of the CCUV reactor is not well established in the literature. In this research work, we propose a viable systematic methodology for the lamp arrangement based on a genetic ...


    By IWA Publishing

  • Flux-step method for the assessment of operational conditions in a submerged membrane bioreactor

    A flux-step method was used for monitoring the pressure variation in a solids separation membrane at different operating conditions. A submerged membrane bioreactor pilot plant, used during the short-term tests, was used to purify actual restaurant wastewater. The influence of membrane backwash and relaxation on the variation of pressure variation was also evaluated. In order to reduce the ...


    By IWA Publishing

  • The Hidden Dangers and Facts of Cryotherapy: How to Remain Safe and Get Health benefits too

    While cryotherapy or frost therapy has been used for millennia, the new cryotherapy center fad that's become popular in salon culture has come under scrutiny when a 24-year-old woman who worked at a cryohealth center in Las Vegas was found dead after using ...

  • Case study - Engine test cell exhaust: RTO

    Overview A Mid-western outboard engine manufacturer bought a three year-old plant for the production of its marine engines. When finished, the engines are removed from the assembly line and run for quality control. The 25,000 SCFM of exhaust from testing contains volatile organic compounds (VOCs) that require regulatory compliance. Also within this exhaust is a great deal ...

  • Innovative horizontal reactor - case study

    AVA was recently able to present a newly developed horizontal reactor for laboratory operation. After comprehensive tests at the technology centre, a special machine type was developed for the purpose of drying powdery raw materials for filter elements. The high-tech filter elements are manufactured as end-products for usage in diverse industrial applications. The challenge in the development ...


    By AVA GmbH u. Co. KG

  • The smart solution to membrane fouling detection, monitoring and management

    Since the advent of membrane technology applications for large-scale commercial seawater desalination in the early Eighties, two critical issues in the application of the technology have emerged and persisted that drastically affected the way plant owners and operators managed these vital water production utilities, and subsequently impacted the total cost of water. The issues are the ...


    By MASAR Technologies, Inc.

  • Performance Comparison of RO and NF Systems

    The nanofiltration train (NF-A) and reverse osmosis train (RO-A) at Port Hueneme Brackish Reclamation Demonstration Facility in Southern California have both suffered from biofouling since startup in November 1998 until the plant implemented a raw water chloramination scheme in June 2000 (around 13,500 hours of operation). Moreover, the nanofiltration membrane elements also suffered from a ...


    By MASAR Technologies, Inc.

  • A large‐scale field trial of thin‐layer capping of PCDD/F‐contaminated sediments: Sediment‐to‐water fluxes up to five years post‐amendment

    The longer‐term effect (3‐5 y) of thin‐layer capping on in situ sediment‐to‐surface water fluxes was monitored in a large‐scale field experiment in the polychlorinated dibenzodioxin and dibenzofuran (PCDD/F) contaminated Grenlandfjords, Norway (four trial plots of 10,000 to 40,000 m2 at 30 to 100 m water depth). Active caps (designed thickness 2.5 cm) were established in two fjords, consisting ...


    By John Wiley & Sons, Ltd.

  • Use of an exposure chamber to maintain aqueous‐phase nanoparticle dispersions for improved toxicity testing in fish

    A novel chamber for maintaining aqueous phase dispersions of nanoparticles (NPs) to enable improved toxicity testing in larval zebrafish was developed. Aqueous concentrations were within 80% of initial NP concentrations, and 96‐h LC50 values were highly reproducible (coefficient of variation ...


    By John Wiley & Sons, Ltd.

  • Argon and Nitrogen in Glove Boxes and Blanketed Chambers case study

    Application Moisture is measured in argon or nitrogen when it is used as a blanketing gas in glove boxes and other blanketed applications. Problem The presence of moisture in the blanket gas for a glove box causes serious contamination problems especially when welding or conducting moisture-sensitive chemical reactions. Moisture causes product contamination, ...

  • CDS-5: A Mayo Clinic and Thermotron Collaboration case study

    Cytogenetic testing is used for the diagnosis of many genetic disorders including congenital (prenatal and adult) and hematologic/oncologic disorders. Processing of these tests used to be labor-intensive with unpredictable test data. That’s why the Cytogenetic Laboratory at Mayo Clinic and Thermotron joined forces to increase the efficiency of cytogenetic test processing with the invention ...


    By Thermotron Industries

  • Variations of carbon transport in the Yellow River, China

    The Yellow River is the second largest river in China. Carbon transport by the Yellow River has significant influence on riverine carbon cycles in Asia. In order to monitor seasonal and spatial variations of carbon concentrations and to estimate carbon exports, water and suspended solids were sampled every 10 days at three representative stations (Qingtongxia, Tongguan, and Luokou) along the ...


    By IWA Publishing

  • Precellys application focus cancer research oncology - case study

    Cancer research laboratories working with tumor tissues derived from animal models (1,2) or xenografts (3) face difficulties in homogenizing these tough samples using traditional methods (4). The Precellys homogenizers provides high speed sample disruption based on bead- beating technology for the extraction of DNA, RNA, protein, enzymes and metabolites within minutes. It ensures high ...


    By Bertin Instruments

  • Cryotherapy is Cool

    Cryotherapy is a real facet of medical treatment that uses extremely low temperatures to help with pain and inflammation.  Not to be confused with cryopreservation, in cryotherapy the patients are only subjected to the cold for minutes. It seems like something futuristic, but it is actually an increasingly common treatment among athletes to replace ice baths and ice pack ...

  • T-T project`s supply 11 pumping stations case study

    T-T Projects have recently completed a scheme in South Wales providing eleven pumping stations on a nickel refinery plant called Vale Inco in Clydach who are owned by Brazilian mining giant CVRD (short for Companhia Vale do Rio Doce). The pumping stations consisted of one concrete chamber, with a selection of Planet Range Package Pumping Stations and Weolite chambers. Nine of the ...


    By T-T Pumps Ltd.

  • Passive samplers for air quality monitoring in a Brazilian university

    The aim of this paper was to evaluate the applicability of passive samplers for the monitoring and diagnosis of air pollution at Passo Fundo University, focusing on atmospheric pollutants NO 2 and O 3 . The samplers were built in accordance with already verified methodologies and were placed in several locations in the university campus, namely: energy generator, pool heating boiler, ...


    By Inderscience Publishers

  • Air gap magnetic field – key parameter for synchronous and asynchronous machine fault detection

    Abstract Calculations and measurements of a magnetic field at specific places in a machine air gap have been performed in order to determine magnetic field sensitivity to machine geometry and fault occurrence. Installation of measuring coils and a Hall sensor on and around the stator tooth, around stator yoke and the pole shoe has been considered.  ...

  • Factors affecting the performance of a single-chamber microbial fuel cell-type biological oxygen demand sensor

    Microbial fuel cells (MFCs) are devices that exploit microorganisms as biocatalysts to degrade organic matter or sludge present in wastewater (WW), and thereby generate electricity. We developed a simple, low-cost single-chamber microbial fuel cell (SCMFC)-type biochemical oxygen demand (BOD) sensor using carbon felt (anode) and activated sludge, and demonstrated its feasibility in the ...


    By IWA Publishing

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