dilution calibration technology Articles

  • 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.

  • 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

  • Breakthroughs in testing technology as new global player emerges

    Engineers and developers now have a choice of engine testing technologies following the recognition by the United States Federal Register of the BG3 Partial Flow Dilution sampling (PFD) technology developed by Sierra Instruments for engine particulate emissions, R&D and certification. Building on this news, the Monterey, California - based company has also extended its global footprint this ...


    By Sierra Instruments, Inc.

  • Comparison of EN 14078 and ASTM D7371 infrared biodiesel methods

    Infrared (IR) analysis is the most widely used measurement technology for measuring biodiesel in diesel. Both EN 14078 and ASTM D7371 methods use infrared as the analytical method and more specifically FTIR (Fourier Transform Infrared) spectroscopy. Infrared is a common spectroscopic technique used for quantitative and qualitative analysis. In the biodiesel measurement, the fatty acid methyl ...


    By Spectro Scientific

  • Use of PCB RaPID ASSAY kits for semi-quantitative screening consistent with SW-846 method 4020

    BACKGROUND The Methods Section of the EPA Office of Solid Waste (OSW) has stated a need for more rapid, less expensive field screening procedures that do not compromise the accuracy of contaminant evaluation. The OSW screening approach incorporates a single point threshold or multiple individual point discriminators giving results in semiquantitative ranges lying between these points. SDI ...


  • Use of SDI 2,4-d rapid assay kits for semi-quantitative screening consistent with SW-846 METHOD 4015

    BACKGROUND The Methods Section of the EPA Office of Solid Waste (OSW) has stated a need for more rapid, less expensive field screening procedures that do not compromise the accuracy of contaminant evaluation. The OSW screening approach incorporates a single point threshold or multiple individual point discriminators and reports results in semi-quantitative ranges lying above, below or ...


  • Use of SDI pentachlorophenol rapid assay kits for semi-quantitative screening consistent with sw-846 method 4010

    BACKGROUND The Methods Section of the EPA Office of Solid Waste (OSW) has stated a need for more rapid, less expensive field screening procedures that do not compromise the accuracy of contaminant evaluation. The OSW screening approach incorporates a single point threshold or multiple individual point discriminators and reports results in semi-quantitative ranges lying above, below or ...


  • Use of TNT RaPID ASSAY kits for semi-quantitative screening consistent with SW-846 method 4050

    BACKGROUND The Methods Section of the EPA Office of Solid Waste (OSW) has stated a need for more rapid, less expensive field screening procedures that do not compromise the accuracy of contaminant evaluation. The OSW screening approach incorporates a single point threshold or multiple individual point discriminators giving results in semiquantitative ranges lying between these points. SDI ...


  • Use of SDI carcinogenic PAHs RaPID assay kits for semi-quantitative screening consistent with SW-846 method 4035

    BACKGROUND The Methods Section of the EPA Office of Solid Waste (OSW) has stated a need for more rapid, less expensive field screening procedures that do not compromise the accuracy of contaminant evaluation. The OSW screening approach incorporates a single point threshold or multiple individual point discriminators giving results in semiquantitative ranges lying between these points. SDI ...


  • Use of SDI total btex/tph rapid assay kits for semi-quantitative screening consistent with sw-846 method 4030

    BACKGROUND The Methods Section of the EPA Office of Solid Waste (OSW) has stated a need for more rapid, less expensive field screening procedures that do not compromise the accuracy of contaminant evaluation. The OSW screening approach incorporates a single point threshold or multiple individual point discriminators giving results in semiquantitative ranges lying between these points. SDI ...


  • Use of PAHs RaPID ASSAY kits for semi-quantitative screening consistent with SW-846 Methood 4035

    BACKGROUND The Methods Section of the EPA Office of Solid Waste (OSW) has stated a need for more rapid, less expensive field screening procedures that do not compromise the accuracy of contaminant evaluation. The OSW screening approach incorporates a single point threshold or multiple individual point discriminators giving results in semiquantitative ranges lying between these points. SDI ...


  • 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

  • EPA - 40 CFR Part 51, Appendix M - Test Method 205

    DEPARTMENT OF ENVIRONMENTAL PROTECTION (DEP)   40 CFR PART 51   ...


    By Environics, Inc.

  • Continuous Mercury Monitoring Benefits Cement Plants

    Antti Heikkilä from Gasmet Technologies highlights the challenges faced by mercury monitoring in cement kilns, and explains how a new continuous mercury monitoring system addresses these issues and provides process operators with an opportunity to improve environmental performance and demonstrate compliance with forthcoming legislation. Background The production of cement ...


    By Gasmet Technologies Oy

  • Determination of micro and macro elements in waters with the ELAN DRC-e

    The ability of reaction cell technology to reduce the effects of spectral interferences is well-known, but another, lesser-known capability also exists: extending the dynamic range. This is accomplished by adjusting the bandpass parameters with no gas in the cell. Because the bandpass parameters can be adjusted on a per-mass basis, sensitivity can be reduced on selected isotopes without affecting ...


    By PerkinElmer, Inc.

  • Texas Instruments - A Novel Separation Technique for the Analysis of Trace Levels of Atmospheric Contaminants in Inert Semiconductor Process Gases

    A NOVEL SEPARATION TECHNIQUE FOR THE ANALYSIS OF TRACELEVELS OF ATMOSPHERIC CONTAMINANTS IN INERTSEMICONDUCTOR PROCESS GASES J. Scott McWilliams, Alan Johnson, Charlene Long, Jeremiah D. Hogan*Texas Instruments, Inc.Dallas, TX 75265 Low ppb detection limits for contamination in cylinder gases have been achieved with gas chromatography using a modified gas ...


    By Environics, Inc.

  • atg UV choosen for sugar solution disinfection

    Client: SOFI   Location: Dunkirk, France Description: atg UV provided UV disinfection for sugar syrup solutions based on their vast experience in the beverage production industry, providing systems for some of the world's leading brands, such as Heineken, Britvic, Thwaites and Coca-Cola. atg UV Technology, market leaders in the ...


    By atg UV Technology

  • Microflow LC offers better sensitivity due to reduced matrix effects!

    What is matrix effect? In my last post, What is Microflow,  I talked about two main parameters,  better sampling efficiency and reduced matrix effect, for microflow LC/MS offering higher sensitivity than its conventional counterpart. Let’s take a close look at the matrix effect. It is a result of ...


    By Waters Corporation

  • TVOC measurement for LEED/green building evaluation

    Total Volatile Organic Compounds (TVOC) may be evaluated when building designers/managers are pursuing the Leadership in Energy and Environmental Design Green Building Rating System for New Construction (LEED-NC) EQ Credit 3.2. The latest LEED-NC guidance document specifies that the maximum allowed concentration of TVOC measured in a building (post construction, pre-occupancy) is 500 µg/m3; the ...


  • Lab manager shares how automated data package assembly results in paperless and efficient lab

    When I met with Lab Manager and Senior Chemist at DHL Analytical, Karyn Lane, several months ago at the laboratory in Round Rock Texas, I noticed immediately that she had the cleanest and most paper-free work environment I had ever seen. Given how many Level 4 data packages she and DHL Analytical assemble and deliver to customers every week, that is quite an impressive accomplishment. Karyn was ...


    By Poplar Solutions, LLC

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