The Cost of Inaccurate CEM Calibration Gases

Written by Leanne Merz

Continued from page 1

Ifrepparttar CEM error rate due to calibration is, between 2% and 8%, then America’s acid rain utilities could be overstating emissions by 82,050 to 328,203 tons of SO2 each year. Withrepparttar 136553 SO2 current market value at $700 per ton, this results in $57,435,000 to $229,742,100 lost potential emission credits this year – withrepparttar 136554 utility companies that use unacceptably inaccurate calibration gases, such as those produced byrepparttar 136555 43% of vendors who failedrepparttar 136556 blind audit, bearing much of that loss.

The Cost of Inaccuracy

In order to fully understandrepparttar 136557 significance of these numbers, imagine a utility company with a total SO2 Allowance Trading System (ATS) credit of 400,000 tons for one year, but which also used calibration gases that were actually 2% higher thanrepparttar 136558 tag value. That company would likely be overstating emissions by 8,000 tons (400,000 tons x 2%), which, at a value of $700/ton, means it would be losing over $5 million in allowance credits which could have been banked or sold that year. Companies using calibration gases bought from vendors who failedrepparttar 136559 blind audit, and whose gases therefore exceedrepparttar 136560 2% accuracy requirement, stand to lose even more.

Such a gross loss of potential trading credits clearly overshadowsrepparttar 136561 higher initial cost of accurate CEM calibration gases. This year’s blind audit revealsrepparttar 136562 scope ofrepparttar 136563 problem of inaccurate gases, and utility companies would do well to take notice. The companies could not seerepparttar 136564 difference because they calibrated their CEMs based onrepparttar 136565 tag values of these calibration gases. This problem is one which is only detectable after an annual or semi annual Relative Accuracy Test Audit (RATA) as mandated by EPA.

Leanne Merz is the Director of Technical Services for Scott Specialty Gases, the world.s largest producer of EPA Protocol gases and a leading global manufacturer of specialty gases for all types of applications. She can be reached by telephone, 800-21SCOTT. More information on the company and Scott's products can be found at .

Protecting America with Specialty Gases

Written by Bob Davis

Continued from page 1
New Homeland Security Products Today we are asked with increasing frequency to develop calibration gases for a new type of application. The U.S. military and numerous instrument manufacturers now ask us to develop calibration gases for instruments that are currently used or under development for detection and defense against various CWAs that enemy forces might use against us. Hence, Scott is developing a growing line of Homeland Security Products. Some of these are “standard” mixtures such as cyanogen chloride, phosgene and hydrogen cyanide. Other times our R&D and Technical Services groups work with customers to develop custom products to meet highly specialized application requirements. Frankly speaking, considering their application, Homeland Security gas mixtures are products we’d just as soon not make. Butrepparttar need for them is very real and so in addition torepparttar 136552 markets we’ve traditionally served, we now also focus our technology on creating dependable products to help defend and protect our country. Let’s all hope for a time when we can retire these products as being no longer needed.

For more information about Scott Homeland Security gas mixtures, contact our Technical Services group at 800-21-SCOTT.

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