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Carbon Monoxide (CO) - Gas Hazards & Workplace Safety

Matt Shaw

Gas Chemical Details

Carbon Monoxide is a colourless, odourless gas, to the human senses it is completely invisible. Carbon Monoxide is a highly toxic gas.  It is termed a toxic (blood) asphyxiant, meaning it reduces the oxygen transport properties of the blood.  Low ppm doses of Carbon Monoxide can cause headaches and dizziness, if the victim is removed to fresh air no permanent damage will result. High concentrations however, can saturate a person's blood in a matter of minutes and quickly lead to respiratory arrest or death.

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Topics: Gas Theory for Gas Detection Applications, Gas Hazards, Gas Detection Standards

Occupational Health Risks of Carbon Dioxide

Matt Shaw

Gas Chemical Details

Carbon Dioxide.jpgDespite the fact Carbon Dioxide is naturally present in the atmosphere (about 400ppm) and we exhale it when breathing, CO2 is one of the most frequently overlooked toxic gases. Both colourless and odourless, CO2 in high concentrations poses an extremely dangerous hazard.

Carbon dioxide is heavier than air, with a density of 1.5 times that of fresh air. When it is released into an enclosed or confined space it tends to settle to the bottom, reaching the highest concentration in the lowest parts of the space.

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Topics: Gas Theory for Gas Detection Applications, Gas Hazards, Gas Detection Standards

Oxygen (O2): Gas Hazards & Occupational Health

Matt Shaw

Gas Chemical Details

Oxygen, the most abundant element in the earth’s crust is of great interest due to the fact that it’s essential in the respiratory processes of most living cells. It is found in both the air we breathe and the water we drink. In normal conditions oxygen is a colourless and odourless.

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Topics: High Purity Gas, Gas Theory for Gas Detection Applications, Gas Mixtures, Gas Hazards, Gas Detection Standards

Chlorine Gas Calibration - Challenges for Gas Detection Instruments

Greg Shires

The process of gas calibration involves the testing and comparison of your gas detection instruments against some fixed reference value. The process includes using an accurate gas mixture as a reference and comparing it with the values provided by the instrument being tested. The cylinder mixture or device that produces the assigned correct value is known as the standard and it plays a vital role in all gas calibration.

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Topics: Gas Theory for Gas Detection Applications, Calibration Gas Selection, Gas Mixtures, Calibration Gases

The Effect of Poisons & Inhibitors on Gas Detection Instruments

Greg Shires

Catalytic Combustible Gas Sensors (Pellistors)

These gas sensors are affected by poisons and inhibitors. Catalytic combustible gas sensors are susceptible to a number of different compounds which can result in irreversible poisoning or reduce the sensitivity of the sensor to measure and respond to different gases. The nature of the poison could be physical- soot or other bi-products of combustion which block the pores in the bead or chemical with molecules forming strong bonds with the catalyst and reducing activity.

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Topics: Gas Theory for Gas Detection Applications

Critical Considerations When Purchasing Gas Detection Instruments

Greg Shires
gas detection instruments

Gas detection instruments are life saving devices. This is why it is essential that you choose the best product to meet your specific application and working environment. Here are the critical issues to focus on when choosing your instrument to ensure you are buying the best product for your business. 

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Topics: Gas Theory for Gas Detection Applications

Calibration Gas Selection: What’s a "pentane equivalent" calibration?

Matt Shaw

Calibration gas selection is critical in the operation of any combustible gas detector.

A combustible gas detector will respond to a wide variety of ignitable gases and vapours. How the sensor responds is directly dependent upon which gas is selected to calibrate the instrument.

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Topics: Gas Theory for Gas Detection Applications, Calibration Gas Selection

The Most Important Feature in Gas Detector Selection.

Greg Shires

Thousands of flammable and toxic gas sensors are in use globally every day. The increased use and availability of gas detection instruments is a positive step towards increased safety by reducing the risk and incidence of gas exposure.

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Topics: Gas Theory for Gas Detection Applications