vapor detection Articles
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Increase Mercury Vapor Detection Range by 10X
Vapor dilution module extends detection range of J505 from nanograms to milligrams How it works: The new 10:1 dilution module for the J505 reduces the concentration of mercury vapor in the sample stream by a factor of ten, allowing for a much higher detection limit. Rather than the standard upper detection limit of 500 µg/m3, the new J505 dilution module lets you detect mercury vapor ...
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CETCO provides superior gas vapor mitigation protection at major retail chain - Case Study
LOWE’S in Ithaca, NY – A total of 115,000 square feet of the LIQUID BOOT Gas Vapor Barrier was installed, as specified by ElectroMech Engineering, to protect the structure, which was situated on a former landfill site, from the threat of methane vapor instrusion. LOWE’S in Ocean Township, NJ – A total of 130,000 square feet of the LIQUID BOOT Gas Vapor Barrier was ...
By CETCO
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Satellite analysis and mesoscale behaviour of volcanic plumes and gas from Miyakejima, Japan
Miyakejima plumes of ash-rich and vapour-rich clouds were detected well by the NOAA/AVHRR data, and the height of eruption cloud on 29 August 2000 was estimated reasonably using the brightness temperature at 11 µm of NOAA/AVHRR and the upper air data taking into account the effect of ash emissivity. We found two different mechanisms which bring the high concentration SO2 to the mainland of Japan: ...
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Reducing the Detection Limits for a Process Moisture Analyzer
KEYWORDS Moisture Analyzer, Piezoelectric Sensor, Smart Transmitter, Internal Verification, Quartz-Crystal Microbalance ABSTRACT Piezoelectric moisture analyzers have been used in the process industry for over two decades. While this is an older technology for measuring moisture in gas phase samples, it is still one of the most reliable in the industry. The evolution of the quartz-crystal ...
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STS supplies PHE with new Pocket Sources
Safe Training Systems are supplying Public Health England (PHE) with their new Safe-Series Pocket Sources to add to their extensive set of simulation equipment supplied by STS. PHE provide specialist training and courses in the fields of radiation and contamination monitoring for workers in the Nuclear Industry, Homeland Security, Construction and Medical sectors. PHE have fully embraced the use ...
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Chemical Mfg. Plant Avoids Long Term Shut Down with Thermal Oxidizer
Recently, Catalytic Products International (CPI) worked with a customer who determined during a routine plant inspection that they had unexpected emissions from their process. This can happen as regulations change and as plants continue to improve operations or even change products or processes. In this case, the customer voluntarily shut down their process immediately until a solution could be ...
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Soil and groundwater assessment, Northern England
Project Remediation Strategies were appointed to assist in the identification of a hydrocarbon contamination source that had resulted in significant vapours within a residential property. Further works to asses the nature and extent of soil contamination were also commissioned, together with detailed vapour risk assessments and subsequent vapour remediation works. Workspace An initial internal ...
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Functionalised multi–walled carbon nanotubes for chemical vapour detection
Oxygen plasma functionalised Multi–Walled Carbon Nanotubes (MWCNT) were used to prepare gas sensors that can operate at room temperature. Alumina substrates with interdigitated gold electrodes were employed as transducers and the air–brushing method was used to coat them with carbon nanotube film. Scanning Electron Microscope (SEM) and Transmission Electron Microscope (TEM) images of deposited ...
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PIDs - A versatile device for emergency services in response to a HAZMAT incident
The versatile nature of a PID instrument makes it an indispensable device for the emergency services in response to a HAZMAT incident. The ability of a photoionisation detector (PID) to measure low levels of volatile organic compounds (VOCs) makes them a vital tool in the decision making process following a hazardous materials (HAZMAT) incident. In the immediate aftermath of an accident, ...
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Suitability of Photoionisation Detectors (PIDs) for HAZMAT response
The ability of a photoionisation detector (PID) to measure low levels of volatile organic compounds (VOCs) makes them a vital tool in the decision making process following a hazardous materials (HAZMAT) incident. In the immediate aftermath of an accident, chemical spill or other incident involving hazardous materials there are many unknown factors. The speed at which these can be identified is ...
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PIDs - A versatile device for emergency services in response to a HAZMAT incident
The versatile nature of a PID instrument makes it an indispensable device for the emergency services in response to a HAZMAT incident. The ability of a photoionisation detector (PID) to measure low levels of volatile organic compounds (VOCs) makes them a vital tool in the decision making process following a hazardous materials (HAZMAT) incident. In the immediate aftermath of an accident, ...
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Minigas – EU-Project - Case Study
Miniaturized photoacoustic gas sensor based on patented interferometric readout and novel photonic integration technologies. A new European consortium, MINIGAS, led by VTT Technical Research Centre of Finland, is developing a miniature gas sensor to detect greenhouse ...
By Gasera Ltd
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Pipeline Integrity Monitoring Overview
Understanding Pipeline Integrity Pipeline integrity is all about keeping pipelines operating properly throughout their life cycle. From design and construction to maintenance and inspection to decommissioning and retirement, pipeline integrity engineers work to ensure pipelines and their related components are reliable, sustainable, and safe throughout their service life. Pipeline integrity can ...
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Mercurycontamination detection in industrial premises
Summary Environmental pressures and subsequent legislation to control hazardous substances have seen a sharp decline in the use of mercury, although it remains an important chemical in many industrial processes and a wide range of products. This ongoing use and historic prevalence means that mercury contamination represents a significant hazard during decommissioning, demolition, repurposing or ...
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EEI`s Efforts in Helping to Re-build Hurricanes Katrina & Rita Affected Zones
Untitled Document Dear Environmental Professionals, Hurricanes Katrina & Rita left nothing but destruction in several southern states. We understand the hard work that many of you will face when you travel to these areas to help with the environmental cleanup. Enviro-Equipment, Inc. is here to offer you the right equipment to do it. We have the right equipment, at the ...
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Analytical Devices for the Measurement of Water Vapor and Hydrocarbon Dew-Point in Natural Gas
Introduction The determination of water vapor (water dew point) is crucial in the processing, custody transfer and transport of natural gas. High levels of water vapor in a natural gas stream can lead to a number of problems which include the formation of hydrates and the contribution to corrosion of plant and equipment. Furthermore, water vapor present in natural gas streams affects the overall ...
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Detection and measurement of toxic gases from destructive testing of batteries
Problem Statement New formulations of organic-compound-based batteries for vehicle use must be tested for release of potentially harmful and toxic gases if crushed in accidents. Potential gases include hydrocarbons, fluorocarbons, and hydrogen fluoride, released within seconds of an incident. Actual time-resolved and quantitative data are required from destructive testing to ascertain the ...
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Solvent Safety in Pharmaceutical Manufacturing
The manufacture of pharmaceutical products is a complex and multi-stage operation that can include processes such as blending, wet and dry granulation, milling, hot-melt extrusion, coating, andtablet pressing. Producing the exact formulation, release rate, consistency, and dosage form requires many chemical compounds and substances. Among the mare active pharmaceutical ingredients (API), the ...
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Portable Gas Detectors:You Need To Know
Generally speaking, gas detectors are mainly divided into two categories, stationary gas detectors or portable gas detectors. Both types use various gas sensor technologies to detect gas or vapor hazards. Both types have their own advantages and disadvantages as well as subcategories. Therefore, it is extremely important to understand the nature of the gas or vapor hazard you are trying to ...
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Are your field soil screening procedures providing you with practical and accurate information?
Untitled Document Environmental consulting activities frequently require that on-the-spot decisions be made in the field concerning the presence or absence of volatile, or even semi-volatile, organic compounds (VOC's) in soil. There is nothing that can replace the value of field experience in 'making the right call' when the trucks are lined up, the backhoe operator is waiting, ...
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