The Environics, Inc. Post

Dr. Rachel Stansel

Recent Posts

Gas Delivery Systems for Welding Applications

Posted by Dr. Rachel Stansel on Mon, Apr 01, 2019 @ 04:01 AM

Gas metal arc welding (GMAW) is a joining process that consumes shielding gas in significant volumes. Even hobbyists and other small-scale users of MIG welders require a robust gas delivery system to facilitate their welding process and protect the joint from reacting with atmospheric gases. Contamination of weld joints by ambient gases such as nitrogen (N2) can lead to metal embrittlement and porosity, which can ultimately contribute towards mechanical failure.

Read More

Tags: Gas Flow

Ambient Calibration with Environics

Posted by Dr. Rachel Stansel on Tue, Mar 26, 2019 @ 11:35 AM

Monitoring the composition of ambient air is a vital process in maintaining the quality of the air we breathe. The World Health Organisation (WHO) has attributed millions of deaths per year to air pollution and inhalation of industrial particulates emitted by vehicles and industrial plants. New research has underlined the severity of the issue, suggesting that the health impacts associated with polluted air are more severe than previously believed. The European Heart Journal estimates that air pollution reduces the mean life expectancy in Europe by approximately 2.2 years[1].

Read More

Tags: Gas Flow

Gas Flow Systems for Medical Devices

Posted by Dr. Rachel Stansel on Thu, Feb 28, 2019 @ 10:14 AM

Gas flow systems serve myriad purposes around the world. They are used to calibrate gas chromatographs (GC) in laboratory and analytical facilities and have been widely employed in the mixing, blending, and delivery of appropriate medical gas mixtures. Ground-breaking clinical research into the interaction between distinct gases and cellular behaviour has also benefits from the availability of ultra-high precision gas flow systems certified for medical use. This has supported analytical clinicians and researchers in various medical fields, from oncology to optometry.

Read More

Tags: Gas Flow

MFCs for Hypoxia Training

Posted by Dr. Rachel Stansel on Thu, Feb 21, 2019 @ 09:11 AM

Thermal mass flow controllers (MFCs) are often used to control the flow of a gas species based on the dissipation of thermal energy. This is achieved by integrating a sensor tube into the flow system which is equipped with up and downstream temperature sensors. The gas absorbs heat as it enters the component and loses heat on its way out. MFCs are engineered to calculate the differential temperature in the tube and generate an electrical signal for additional instrumentation. This technology is central to numerous gas blending technologies and is broadly used in a range of application areas.

Read More

Tags: Gas Flow

Performing Ozone Calibration with Environics

Posted by Dr. Rachel Stansel on Fri, Feb 15, 2019 @ 08:12 AM

Ozone (O3) is subcategorized into three primary groups; stratospheric, tropospheric, and artificially-manufactured ozone. Stratospheric ozone is a naturally-occurring substance that forms in the upper stratosphere, up to sixty miles above the earth’s surface. Ultraviolet (UV) rays cleave oxygen (O2) molecules into individual atoms, and when these free atoms bind to whole O2 molecules, ozone is formed. This is the desirable category of the gas that protects the earth’s surface from the most harmful radiation of the sun.

Read More

Tags: Gas Flow

3 Common Applications of Gas Flow Systems

Posted by Dr. Rachel Stansel on Mon, Feb 11, 2019 @ 09:05 AM

Gas flow systems are extremely varied in terms of device architecture, functionality, and measurement accuracy. They include delivery, blender, divider, diluter, and myriad other instrument types responsible for generating or introducing a pre-mixed gas flow into another system.

Read More

Tags: Gas Flow

The Importance of Ambient Air Quality Testing

Posted by Dr. Rachel Stansel on Fri, Dec 21, 2018 @ 08:21 AM

Ambient air quality testing is conducted to determine the gaseous or particulate concentration of air that may be released into the environment or breathed by humans. Dry air in the Earth’s atmosphere comprises a dynamic mixture of gases, primarily nitrogen (~78%) and oxygen (~21%). Smaller volumes of argon (~0.9%) and carbon dioxide (~0.04%) are also present alongside copious trace level gas species and various particulate matter.

Read More

Tags: Ambient Air calibration

Gas Mixtures for Food Packaging Applications

Posted by Dr. Rachel Stansel on Thu, Dec 06, 2018 @ 06:27 AM

Global transit capabilities enable the rapid transport of perishable goods across the world to be enjoyed by consumers far from their country of origin. This is a complicated process that requires storage conditions to be continuously monitored and maintained within tight degrees of tolerance. Livestock products must be constantly refrigerated to avoid spoiling, while fresh fruit and vegetables must be kept in strictly controlled atmospheres to limit the rates at which they metabolize oxygen (O2).

Read More

The Working Principles of Gas Chromatography

Posted by Dr. Rachel Stansel on Tue, Nov 20, 2018 @ 04:29 AM

Gas chromatography is a novel technique for separating and quantitating vaporized compounds using an inert carrier gas. It operates on similar principles to column permeation chromatography, where a sample is dissolved in a mobile phase and passed through a porous stationary structure.

Read More

Top 5 Maintenance Tips from our Service Department

Posted by Dr. Rachel Stansel on Thu, Jan 11, 2018 @ 10:22 AM

We often receive calls and emails asking about the best way to maintain our mixers and dilutors. There are several important things that you can do to keep your unit running in top shape. They will also help you extend the life of your unit.

Read More

Tags: Environics Inc, gas mixing, Ambient Air calibration, zero air generator, customer focus, Troubleshooting, troubleshooting6100, troubleshooting6103, Series 4040, Series 4020, Series 4000