Weathering of materials is most often an irreversible process affecting the cosmetic properties or strength of materials. This aging process is mainly driven by UV radiation, Heat and reactive elements in the atmosphere, for example chemical contamination. The plastic fabric of the product can dry and therefore weakened. The solar load can overheat the products and change material properties irreversibly. A common method to test the deterioration of materials is to expose materials to sun light and...
By EKO Instruments based in San Jose, CALIFORNIA (USA).
Glove boxes are designed for handling both hazardous substances and atmosphere sensitive materials. For controlled atmospheres, nitrogen dry boxes provide an isolated work environment for processing samples or handling air-sensitive materials while maintaining an anaerobic or other gas specific environment within the glove box. For work with hazardous materials, glove boxes provide a leak-tight environment protecting the user from exposure to potentially dangerous materials. Glove box applications include;...
By Systech Instruments Ltd based in Thame, UNITED KINGDOM.Premium
Liquefied natural gas owners require improved routine monitoring of facilities for safety, economic and regulatory reasons. Leaking LNG can cause explosions leading to loss of life and property. Loss of product through undetected leaks dramatically reduces a pipeline operator’s profitability. Traditional gas detectors are slow to reach and require a labour intensive process to keep maintained. IR detectors have been used but with limited success because of cross interference from other atmospheric...
By Boreal Laser Inc. based in Edmonton, ALBERTA (CANADA).Premium
Where the pyrheliometer is most suitable to quantify the total DNI of the solar spectrum. The spectroradiometer gives details about the energy distribution which is important for PV or CPV cell research. The solar spectrum wil change with the angle of incidence and its path through the atmosphere. Photons wil be reflected, scattered or absorbed. Big absorbers of infrared irradiance are water vapor, carbon dioxide, and ozon.
By EKO Instruments based in San Jose, CALIFORNIA (USA).Premium
Sierra designs and manufactures a wide range of today’s most advanced analog and digital gas flowmeters and controllers, including a high-pressure gas flowmeter. For gas mixing and blending applications, accuracy and precision control and measurement are always a central requirement. Sierra’s precise flow meters and controls provide end-users with high performance in gas mixing and blending applications like creating artificial atmospheres, gas mixing in manufacturing, inerting and gas chromatography...
By Sierra Instruments, Inc. based in Monterey, CALIFORNIA (USA).
From the environmental point of view, an issue is any solid, liquid or gaseous substance introduced into the atmosphere that can cause air pollution. Given the wide variety of substances present in the atmosphere, have been proposed several methods of classification: Primary pollutants can be of gaseous or particulate.
By ETG Risorse e Tecnologia S.r.l. based in Montiglio, ITALY.
Closed chamber gas flux measurements can be made with Protea FTIR analysers to allow researchers in the field of atmospheric gas analysis from agricultural and livestock to measure evolved gases such as N2O, CO2, CO, NH3, and CH4. Nitrous oxide (N2O) and Methane (CH4) emissions from soil, plant and livestock are especially important gases to measure, given their high potential as greenhouse gases (GHGs). NH3, whilst not a greenhouse...
A large pharmaceutical plant runs a Thermal Oxidiser on plant to incinerate their solvent-containing gas streams before emission. When the oxidiser is offline, then the plant must monitor the release of solvent to the atmosphere. A ProtIR 204C fixed monitoring system was installed that continually measures 24 plant solvents, including Acetone, Cyclohexane, DCM, DMF, IPA, MIBK, Toluene and THF. Given the high levels that are possible, the system has an active dilution system, reducing the concentration of the...Premium
Polycyclic Aromatic Hydrocarbons (PAHs) are a group of over 100 different chemicals that are known to be formed typically during incomplete combustion of organic matter at high temperature. Their major sources in the atmosphere include industrial processes, vehicle exhausts, waste incinerations, and domestic heating emissions. Due to their carcinogenic/mutagenic effects, 16 PAHs are currently listed as priority air pollutants.Premium
It has been established that organic aerosol (OA) makes up for a major fraction of fine particulate matter in all region of the atmosphere. This fraction accounts approximately for half of the total PM2.5 dry mass.1,2 Primary OA is directly emitted in the troposphere from anthropological and natural sources whereas secondary OA (SOA) is formed in-situ in the atmosphere from the oxidation of biogenic or anthropogenic gas-phase precursors and subsequent partitioning of the less volatile products into the...Premium
The Heating Ventilation and Air-condition (HVAC) market in the Building Automation industry focuses on controlling atmospheric conditions to make them more suitable. Among the conditions controlled by these systems are temperature and humidity. aIST’s thin film platinum and nickel temperature sensors are ideal for heat meter monitoring and control applications in HVAC because of their high resolution and long term accuracy. Additionally, IST’s thin film capacitive humidity sensors are ideal for...
By Innovative Sensor Technology (IST) based in Las Vegas, NEVADA (USA).
The rising levels of manmade greenhouse gases (GHGs) in the atmosphere and their resulting impact on climate is now one of the single biggest technological and environmental challenges facing the world. This makes intensified monitoring of these gases more critical than ever in order to better quantify the role of the numerous natural and manmade sources, sinks and buffers involved in the cycles of GHGs. It also enables us to objectively audit GHG fluxes at the factory, city, country and continental level....
By ETG Risorse e Tecnologia S.r.l. based in Montiglio, ITALY.
The aluminium industry is the major source of perflurocarbon (PFC) emissions to the atmosphere, which are a major contributor to global warming. PFCs have greenhouse gas effects up to 10000 times that of CO2. Emissions have been reduced over the last 20 years, but further reductions are harder to achieve as all the mechanisms for PFC production are not known. In order to better understand the production of PFC on an industrial level, laboratory studies have been carried out using a small scale cell.Premium
Our mass flow controllers in particular see extensive use in bioreactors, pill coating and the creation of artificial atmospheres for research. Our flow meters are used to leak test critical medical devices like stents, while our larger industrial devices are used to heat or steam-clean bioreactors and in facilities management in hospitals.
By Sierra Instruments, Inc. based in Monterey, CALIFORNIA (USA).Premium
Compressed breathing air is subject to strict limits of harmful contaminants defined in European standard EN 12021 and various defence standards such as DEF STAN 68-284 issue 3. The testing interval of breathing air compressors and associated equipment is 3 months and gases tested include carbon monoxide, carbon dioxide and oil vapour defined as hexane and heavier hydrocarbons. EN 12021 covers underwater applications including self-contained open circuit compressed gas breathing (SCUBA) and compressed gas line...
By Gasmet Technologies Oy based in Helsinki, FINLAND.
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