temperature calibrator Articles

  • Environmental Chamber Temperature Calibration: Which Method to Use?

    Calibration of environmental simulation temperature test chambers is anything but simple. This article addresses factors that complicate attempts to calibrate these machines, and discusses strengths and weaknesses of various calibration approaches. Keywords: Temperature chamber, calibration, temperature, oven, temperature accuracy, temperature ...

  • Two Detector Solution to Analyzing Sulfur

    Sulfur compounds are reactive, corrosive to pipes, and destructive to catalysts in petroleum refineries. Sulfur emission are strictly regulated globally. When released into the atmosphere sulfur dioxide converts to sulfuric acid resulting in adverse effects on human health and the environment. Sulfur detection is found useful in many other industries; therefore, detection of sulfur compounds in ...


    By Restek Corporation

  • Validation and calibration of a spectroscopic technique for determination of gas plume temperature

    Abstract Results are reported from a continuing program of research into the physics and spectroscopy of heated stack plumes. Simultaneous thermocouple and spectrometer measurements are used to study sideways—directed plumes from an internal combustion engine and a propane-burning plume generator. A previously-reported result, that the ratio of optically thin signals from two CO2 ...


    By D&P Instruments

  • Recommendations for Implementing a Calibration Program

    Introduction This article is limited to the principles of organization for calibration work in relation to cGMP and other pharmaceutical standards. Calibration and metrology methods related to actual calibration techniques, statistics, and theories are not explored in our discussions.1 Each class of instruments requires specific techniques and approaches to achieve stated accuracies. All ...


    By Prime Technologies, Inc.

  • Why calibrate PULSE?

    This famous remark emphasises the importance of measurement in the world of science, industry and commerce. We all use and depend on it daily, in even the most mundane aspects of life – from setting your wristwatch to the radio time signal, to filling the car fuel-tank, or checking the weather forecast. All of these things depend on proper calibration and traceability to national and ...

  • Balance Calibration – what are the options?

    Balances are relied on in most laboratories and industrial sites for a range of experiments and everyday quality control or operational work. Keeping your balance regularly calibrated is essential to ensure the readings they give are accurate. This does not need to mean a costly visit from an external contractor, as many balances are easily calibrated in house. ...


    By Camlab Limited

  • Improved Calibration and Correction Techniques for Pressuremeters

    Equipment calibration is essential to the pressuremeter test procedure in order to obtain meaningful results. This paper assesses the accuracy of the standard calibration procedures for a monocell pressuremeter probe. The probe was inserted into sets of instrumented aluminum tubes of various lengths and diameters. The pressure distribution acting against the cavity wall was determined for ...


    By ASTM International

  • Pressuremeter Creep Testing in Ice: Calibration and Test Procedures

    In situ pressuremeter creep tests of ice require that particular attention be paid to the precision with which the borehole diameter is measured because failure of ice often occurs at strains as small as 1%. Therefore, precision is important to obtain an accurate picture of the stress-strain-time response of the ice before failure. Also, the pressure applied to the ice must be known precisely ...


    By ASTM International

  • The Fundamentals of the Air Sampler Calibration-Verification Process

    INTRODUCTION The calibration of an air sampling instrument using a reference air flow calibrator requires attention to scientific detail in order to establish that the instrument’s reported values are correctly stated and valid under the actual operating conditions of the air sampling instrument. DEFINITIONS For the purposes of this ...

  • Environics - Reducing calibration gas cost by up to 60%

    EPA's appendix 'M' 40 CFR 51 reduces calibration gas cost by 60%By: Terrence P. Dunn, President of EnvironicsOn May 30, 1995, the EPA published the final version of Method 205 for inclusion in Appendix M of 40 CFR Part 51 entitled, 'Verification of Gas Dilution Systems for Field Instrument Calibrations.' Continuous emissions monitoring systems (CEMS) require ...


    By Environics, Inc.

  • New gas calibration method eases TOC analysis

    LAR Process Analysers AG of Berlin,  Germany expanded the range of feaiures of its measuring device QuickTOC, which facilitates the monitoring of ultra pure and cooling water, boiler feed and condensate measurement, and industrial wastewaters. For many years, the Berlin company lias been developing, high quality measuring devices and processes for the TOC analysis of condensates and boiler ...


    By LAR Process Analysers AG

  • Calibration of a simple model for waste stabilisation pond performance in seasonal climates

    The paper describes the calibration of a model for waste stabilisation pond (WSP) performance in seasonal climates, based on the use of readily available climate data sets. Calibration data were taken from a wide geographical area of Canada and the USA, including coastal and moderately seasonal sites. Good agreement with measured values was shown using a biochemical oxygen demand (BOD) decay ...


    By IWA Publishing

  • TLC meter “how-to” video: two-point user calibration

    A Solinst TLC Meter measures water level, temperature, and conductivity. To ensure accuracy of readings, the user can easily calibrate the Meter for conductivity, as required. User calibration allows for adjustment of a TLC Meter if the probe has been altered slightly due to mechanical, biological or chemical affects. If a TLC Meter is tested in standard calibration solution, and the readings are ...


    By Solinst Canada Ltd.

  • Suction-Moisture Content Calibration of Filter Papers from Different Boxes

    The filter paper method is probably the simplest of the methods available for estimating the suction of a clay soil. The method measures soil suction indirectly by simply measuring the moisture content of a filter paper having been brought to the same suction as the soil. Calibration of representative specimens of the filter paper over a range of known suctions defines the suction-moisture ...


    By ASTM International

  • Calibration and use of the polar organic chemical integrative sampler—a critical review

    The implementation of strict environmental quality standards for polar organic priority pollutants poses a challenge for monitoring programs. The polar organic chemical integrative sampler (POCIS) may help to address the challenge of measuring low and fluctuating trace concentrations of such organic contaminants, offering significant advantages over traditional sampling. In the present review, ...


    By John Wiley & Sons, Ltd.

  • What are the key steps in measuring pH? Why do I need to calibrate?

    pH is a useful parameter which is used across all industries for quality control, environmental monitoring, lab work and much more. There are 10 key steps which should be followed to ensure pH measurements using a meter are accurate. pH is a useful parameter which is used across all industries for quality control, environmental monitoring, lab work and much ...


    By Camlab Limited

  • Calibration of a passive, in situ, integrative sampler for monitoring of microbial biotoxins in aquatic environments

    In this work, an integrative passive sampler based on a silicone membrane filled with a suspension of γ-Fe2O3 at pH 3.5 was developed. The novel device was calibrated for the measurement of microcystin concentrations in water. Laboratory calibration studies of the passive sampling devises under controlled conditions of temperature, water turbulence, and analyte concentration were ...


    By IWA Publishing

  • Intellisenc Greenhouse Controllers for control of CO2, Humidity and temperature

    Optimum and accurate CO2 level is important for effective and efficient plant growing. Too much CO2 creates diminishing return on expense and too little fails to utilize your capital investment. Optimum control of all facets of the growing environment results in high productivity at less costs. Plants need to be able to shed moisture to maintain their capacity to draw in nutrients from the soil. ...


  • Sonic nozzles for gas calibrators, when simplicity provides accuracy!

    Gas analyser’s calibration is a task required in many applications according to either legislation or quality systems management. This is the case for Air Pollution Monitoring or Continuous Emissions Monitoring devices installed in cabinets, for continuous analysis in remote locations. Measurements in traces range are performed and analytical devices specifications need to be validated and ...


    By LNI Swissgas

  • Determining Concrete Maturity Using Temperature Data Loggers

    CAS DataLoggers has provided the temperature monitoring devices for a construction contractor which needed to monitor and record the cure of structural concrete onsite. Once workers could prove that the concrete was strong enough, they could then proceed with new construction. The company was on a tight ...


    By CAS DATALOGGERS

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