Clean Air

Our Commitment

Clean Air Express provides sampling equipment and supplies for professionals that take pride in their air test programs. Our goals are to have the most reliable equipment, ready to ship and fun to use.• Fast Same day shipping on all stock items for orders received by 4:30p.m. CST".

Clean Air Experience

Clean Air Express equipment is developed by field engineers for field-testing. Clean Air brings over 30 years of testing experience to the design and manufacture of environmental sampling equipment.

Research Reports and Technical Publications

Demonstrating Compliance with Sub-ppm Acid Mist Limits: Can EPA Method 8 Handle the Challenge?

Scott Evans, Kelly Aita, and Eric Chi

Clean Air Engineering, 500 W. Wood St., Palatine, IL, 60067

Abstract
EPA Method 8 for measuring SO2 and H2SO4/SO3 has been used for years in the utility industry, but was designed and validated for use at sulfuric acid plants. However, the method is increasingly being specified in operating permits to measure very low levels of SO3 at coal fired power plants and other sources. This paper looks into the capabilities of the method in a typical coal-fired boiler gas stream; focused on the method detection limit (MDL) for Method 8 and several areas where biases arise, especially at low levels of SO3. Areas that are addressed include: experimentally determined MDL, SO2 oxidation bias, titration error, analyst bias, and filter bias. A discussion is also included on potential procedures to improve the accuracy of the method at low SO3 concentrations. All results presented in this paper are preliminary at this time and are subject to further analysis. Purchasers of this will recieve interum updates and a final report which will include the effects of ammonia on detection limit.

Report ID Method8-2007-3 ................ $4250.00

Click Here for Technical Information