Monitoring & Testing E-Zine
September 2012

This Month´s Featured Articles, Papers & Reports
Today’s TOC; Tomorrow’s THMs - How Total Organic Carbon (TOC) Analysis Relates to Disinfection Byproducts such as Trihalomethanes (THMs) and the Corresponding EPA Regulations
IntroductionThe US Environmental Protection Agency (EPA) amended the Safe Drinking Water Act (SDWA) in 1996 to balance the risks presented by microbial pathogens and by-products from the disinfectant used to destroy these microbes. The byproducts, called Disinfection Byproducts (DBPs), form from the interaction of the naturally occurring organic matter (NOM) in a treatment plant’s source water and its disinfection process. NOM is typically measured as total organic carbon (TOC). DBPs, such ...
Two Technologies for Flow Measurement from Outside a Pipe
Doppler and Transit Time are two very popular types of flow meter for non-invasive measurement of flow in full pipes. We tend to confuse these technologies because they are both ultrasonic and both measure flow by using sensors clamped onto the outside of a pipe. In the real world they actually work best in opposite applications. Success in your installation depends on understanding the differences and making the right choice.Ultrasound is sound generated above the human hearing range - above 20 ...
PetroSense - FCI Environmental Inc.
Measurement of BTEX on site. Continuous monitoring and on site sample solutions. PetroSense has the right system for your application. Based on PetroSense’s patented Fiber Optic Chemical Sensor (FOCS) technology, we offer a complete line of real time measurement solutions to provide you with the state of the art early warning system that helps you keep incidents from becoming problems. Applications: BTEX monitoring, Total Petroleum Hydrocarbon monitoring, TPH monitoring FCI Environmental Inc. is a 20-year-old, private company that develops, manufactures, markets and licenses fiber optic chemical sensors that produce continuous, real-time information on pollutants and contaminants in a variety of materials including air, water and soil.

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