particulate sample Articles
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Inside the Particulate Monitor – Filter Samplers
Some time ago, OPSIS published descriptions on how some well-established types of gas analysers work, namely those based on spectrometers, interferometers, and tuneable diode lasers. They all utilize absorption of light to determine the concentrations of gaseous pollutants such as nitrogen oxides (NOX), sulfur dioxide (SO2), hydrogen chloride (HCl), ammonia (NH3), and many more. The same ...
By OPSIS AB
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Custom Engineering and Design Capability
ANSI N13.1-2011 stack sampling location qualification testing ANSI N13.1 stack sampling system design Custom air sampler design Integration of radiation detectors and air sampling systems ANSI N13.1-2011 Design Considerations ANSI N13.1-2011 requires that sampling systems satisfy the following design criteria; (1) representative particles from the stack flow must be drawn into the ...
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Sampling Air-Suspended Particulate Contaminants from Disk Drives
Our MPS-3 Microanalysis Particle Samplers have helped many engineers collect samples from computer disk drives for microanalysis and solve contamination problems. The MPS-3 Microanalysis Particle Sampler is an invaluable tool for the engineer to collect air-suspended particle samples from a disk drive for analysis. It is especially designed to make it easy for conducting analysis using advanced ...
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Cytiva - Whatman™ glass fiber (GF) tape improves data collection in continuous air monitoring
Find out why using glass fiber filter tape can support reliable measurement of particulate matter in continuous air monitoring research, offering increased efficiency and consistency during data collection and analysis. From companies needing to regulate the number of particulates released from their plants, to government agencies such as the US Environmental Protection Agency (EPA) studying ...
By Cytiva
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Software and hardware solutions
Sierra-CP can meet a wide range of testing requirements with its highly flexible, customized software and hardware solutions Thirty years of successfully meeting tough customer challenges has taught Sierra-CP that the concept of ‘one solution fits all’ just doesn’t work in the automotive testing industry. The company works hard to create an open atmosphere for client ...
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Particulate partial flow sampling
The sampling method of the Sierra Instruments Model BG-3 sets the standard for engine particulate emissions measurement protocols of the future sierra instruments In a study at West Virginia University, evidence showed that the Sierra Model BG-3 partial-flow system is equivalent to full-flow CVS. At the August 2008 DEER conference, the university’s Dr Ben Shade presented a paper evaluating ...
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Particulate Matter Testing - BG3 Partial Flow Dilution Emissions Sampling - Case Study
Today, the BG3 Elite Series for partial flow dilution (PFD) is the standard used to test and measure particulates by such industry giants as Caterpillar, John Deere, Perkins, JCB, and even the US EPA, and has found a global installed base of hundreds of units. On January 7, 2011, Sierra made history with the Model BG3 when PFD technology was signed into law for particulate matter (PM) emissions ...
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Hard to Find Filter Configurations
Announcing New Hard to Find Filters Filters have been the go-to method for sampling air in determining particulate contamination. Before I get into the “hard to find” filters, let us talk about filtration. The ideal filter should: be able to capture “everything” down to the nanometer; never plug; be free of the substance that you are measuring, down to nanograms; ...
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Smudging, the why, the where and possible health concerns
Traditions serve an important function to keep a culture’s history and to engage the community. Rituals that include smoke or incense are widespread and can be found in Buddhist temples across Asia, the Roman Catholic and Greek Orthodox churches as well as indigenous tribes like the First Nations in North America. Smudging is one of those traditions that is common for many First Nations. ...
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TOC Analysis of Turbid Liquid Waste Using the Teledyne Tekmar Lotix with LSS Boat
Abstract The analysis of Total Organic Carbon (TOC) in samples can be difficult due to the variety of sample matrices. Specifically, liquid samples with large particulates can negatively affect TOC instrumentation by blocking liquid-handling system valves and tubing and can lead to significant consumable costs and maintenance downtime. Considering these challenges, Teledyne Tekmar has developed ...
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VCU Testing for a Major Pipeline Company - Case Study
Challenge Antea Group was contracted by a major pipeline company to complete a performance test of two marine VCUs and a VOC leak quantification of components during loading of marine vessels. The protocol for both of these tests had been developed by a previous consultant and TCEQ had not yet approved protocol. The client recently purchased the facility and had little information on important ...
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Ambient Air Sampling Methods
Pollutants are nothing but any substance that may present in an atmosphere in such a concentration that it may harmful to surrounding, living organism or human being. Sampling and analysis of air pollutants is known as Air quality monitoring and it is major part of environmental monitoring. There are many advanced types of ambient air Sampling methods. we will learn here only which are most ...
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Development of a real-time stack particulate mass monitor
Abstract Presently, particulate emissions from stacks are measured by sample and weigh methodology, which despite their status as ‘reference methods’ are often slow and sometimes not very repeatable. These methods use comparisons of before and after filter weighing to yield an average particulate concentration for a given sample period. The procedures require a great deal of care to ...
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Validation of a new method for in-stack measurement of particulate matter emissions from large stationary sources
Abstract A new method for measuring particulate matter in stationary sources has been developed by Rupprecht & Patashnick Co. (R&P). This new method, named the TEOM® Series 7000 Source Particulate Monitor, uses R&P TEOM technology to provide in situ, filterbased, direct mass measurement of particulate matter in stationary source emissions. The performance of this new monitoring ...
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ANSI N13.1-2011 Stack Sampling Considerations
Background Nuclear facilities are required to follow industry standards for sampling stack effluents. Exposure of the general public to released radionuclides must be monitored as specified in US governmental regulations. The United States Environmental Protection Agency (USEPA) and the United States Nuclear Regulatory Commission (USNRC) have the authority over the monitoring of these releases. ...
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Chemical and morphological study of PM
10and PM2.5in Pune, IndiaPM10 and PM2.5 ambient samples were collected by a particulate sampler (APM 550, Envirotech) in the Department of Chemistry, University of Pune, India. Exposed filters were used to determine the mass, ionic composition and morphology of fine PM. The mean PM10 and PM2.5 concentrations were 16.69 ± 5.6 μg m³ and 11.68 ± 4.1 μg m³, respectively. Neutralisation factors for all major cations were ...
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Sierra-CP Engineering to present live demonstrations of advanced CADET V14 Software at Automotive Testing China
Sierra-CP Engineering, a global engine, vehicle and emissions test company, announces they will give live demonstrations of the latest version of their advanced CADET V14 automotive test software, the heart of their system solutions, at this year’s Automotive Testing Expo in Shanghai, P.R. China (booth 1025), September 10-12. Over the last 30 years, Sierra-CP has developed advanced ...
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A numerical analysis of the aspiration efficiency of a personal sampler
The impact on sampling efficiency of increasing the flow rate of a low flow personal sampler has been examined. Increases in flow rates were required to obtain sufficient particle mass over the duration of a typical rush hour commute (3.5?16.7 litres/min). Computational Fluid Dynamics (CFD) modelling has been used to assess the implications of this higher flow on the aspiration efficiency of the ...
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Methods to assess carbonaceous aerosol sampling artifacts for IMPROVE and other long-term networks
Volatile organic compounds (VOCs) and semi-volatile organic compounds (SVOCs) adsorb to quartz fiber filters during fine and coarse particulate matter (PM2.5 and PM10, respectively) sampling for thermal/optical carbon analysis that measures organic carbon (OC) and elemental carbon (EC). Particulate SVOCs can evaporate after collection, with a small portion adsorbed within the filter. Adsorbed ...
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Reflectance spectroscopy as a tool for settled dust monitoring in office environment
The aim of this study was to develop a technique based on reflectance spectroscopy that is capable of evaluating small amounts of sediment dust. Laboratory simulations and two field experiments conducted in the same office environment were carried out to generate particulate dust samples based on multivariate data analyses. Spectral measurements were taken using either a laboratory Quantum 1200 ...
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