Toxicity of pure chemicals is assessed using respirometers by adding increasing concentrations to an active culture. The concentration at which oxygen uptake or gas production begins to decrease is known as the “threshold toxicant concentration.”
Motor vehicle emissions are a major source of air pollution in urban areas and impact the lives of billions of people every day around the world. Motor vehicle exhaust contains toxic chemicals that are harmful to people’s health when exposed at certain levels. These toxic fumes cause smog in the atmosphere, which can affect very broad regional air sheds and contribute to the formation of cancer. Teledyne API has several products specifically designed to meet the challenging demands of near-roadside air...
Sea cargo containers and wooden packing materials are fumigated to control the spreading of pest animals and micro-organisms. Fumigant gases are toxic and measurements are carried out as a health and safety precaution. Measurements are required by e.g. customs inspectors prior to opening containers, making the shipping companies responsible for carrying out measurements. Products shipped in containers may release VOCs from e.g. solvents and glues used in manufacturing process. The concentrations of vapors may be...
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...
A safe laboratory environment requires an
effective method for clearing toxic material from fume hoods. Since all handling of toxic
materials is completed in these hoods, it is
critical to have a procedure to evaluate their
operation to assure adequate protection for
laboratory workers. The InfraRan Specific
Vapor Analyzer, factory calibrated for SF6, is an ideal instrument for measuring fume hood
efficiency in accordance with ASHRAE and
other standards. Manufacturers identify the flow
dynamics (factors that...
GasFinder2 can be permanently installed to monitor chemical and petroleum plants for both combustible and toxic gases. GasFinder2 can be used to replace arrays of point sensors for perimeter monitoring. A single light path will replace many point sensors. With GasFinder2 perimeter monitoring, all gas dispersed from a facility is detected and logged.
Hydrogen sulfide is the chemical compound with the formula H2S. H2S is colorless, toxic and flammable and is responsible for the foul odour of rotten eggs and flatulence. Hydrogen sulfide often results from sulfur reducing bacteria in nonorganic matter (in the absence of oxygen), such as in swamps and sewers (anaerobic digestion). H2S also occurs in volcanic gases, natural gas and some well waters.
Carbon monoxide poisoning is the most common type of fatal poisoning in many industrialized countries. Carbon monoxide is a colourless, odorless and tasteless gas caused by the incomplete combustion of hydrocarbon fuels. Carbon monoxide is a toxic gas to the human body, when inhaled it binds to hemoglobin, myoglobin, and mitochondrial cytochrome oxidase reducing oxygen storage, transport and respiration in these organelles.
Many industries are required to measure stack emissions of toxic gases periodically, but not continuously. Extractive wet chemical methods currently used are slow, labor intensive and expensive. A single GasFinderFC can perform stack monitoring requirements for a specific gas, quickly, easily and accurately.
Sewerin manufacture a wide range of gas warning detectors suitable for many different gas monitoring, detection and warning applications.Sewerin gas detectors are used to monitor and warn of the dangers from explosive, toxic and asphyxiating gases.
Hydrogen Cyanide (HCN) is a highly toxic compound that is a byproduct of many industrial processes. Existing HCN point sensors are maintenance intensive, slow to respond and provide limited coverage. Many HCN sensors do not work reliably in hot or cold weather, or in humid environments. Our technology can be used for fixed monitoring applications or for temporary protection of workers during construction projects.
Once an archetypal example of manual production, the winery and brewery industries now incorporate sophisticated processes to ensure high quality levels and efficient output. In some cases traditional approaches have simply been scaled up or put under more stringent monitoring, whilst in others innovations such as nitrogen-pressurised canning have been introduced. However, whichever approach has been followed there is also a growing realisation of the gas hazards that are associated with both new and old processes,...
The nation has stockpiled thousands of cylinders and canisters of toxic and deadly chemical weapon agents, including mustard gas (HD), sarin (GB), tabun (GA), and V-agents. Most of these CWAs are stored at DOD facilities around the country and many have been in storage for years and years. As a consequence, DOD requirements specify that the stockpiles have to be monitored regularly for leakages to prevent release to the environment and exposure to personnel.
CairNet is a simple and efficient way to monitor processes and plant surroundings via a wireless communicating network and autonomous (solar panel and battery). CairNet surveys fugitive emissions of toxic gases or odourous gases around waste water treatment plants (WWTP), allowing you to react quickly to gas leaks. CairNet allows the wireless survey of hundreds of measurement points within a 200m radius of the wireless receiver for a much efficient installation cost.
Cairpol systems can be used for fugitive...
Axetris infrared sources are used in a variety of industrial applications: Combustible and Toxic Gas Detection, Refrigerant Monitoring, SF6 Monitoring, Fruit Ripening Monitoring, Flame Detection, Liquid Analysis using Attenuated Total Reflection ATR, Semiconductor Fabrication.
Measuring Fluorine in Industrial and Construction Waste using Benchtop NMR MQC Analyser. Processing and recycling of industrial and construction waste often requires measuremetns of fluorine content in the materials. It mostly relates to monitoring potential emission of toxic fluorine gas and optimisation of the waste processing. Our benchtop NMR analyser MQC systems provide a fast, simple and accurate method of measuring fluorine in liquid and dry waste. The NMR technique does not require the use of any chemicals...