SEAS has unmatched capability to perform state-of-the-art air emissions testing
for the entire range of air pollutants on boilers, furnaces, heaters, and many other types
of equipment. Our experienced field testing personnel employ the latest methods,
utilize the best equipment, and are backed by over 23 years of experience in stack
testing. Key features of our stack testing practice include real time measurement,
on site data analysis and reporting, and simultaneous multisource monitoring.
SEAS routinely conducts isokinetic stack tests to determine particulate or
gaseous emissions from stationary and mobile sources. The purpose of isokinetic
sampling is to capture particles or gases that pass through a defined area for a defined
time without disturbing their paths. The velocity of the air going into the sampling
probe's nozzle is equal to the velocity of the undisturbed air at that point. The air is
disturbed as little as possible so that the same particles and gases (no more and no less)
go into the nozzle as would have passed the area of the nozzle had it not been there.
SEAS conducts U.S. EPA wet chemical methods employing techniques such as
distillation, extraction, titration and gravimetry. These methods are used to
determine flue gas components such as Sulfur Dioxide, Nitrogen Oxides, Lead, Total Reduced
Sulfur (TRS) and Multi Metals (EPA Method 29).
SEAS uses Instrumental Analyzers in conjunction with EPA Protocol 1 Calibration
Standard Gases to determine gaseous emissions from stationary and mobile sources. A
variety of analyzer technologies are employed to accomplish this, including non dispersive
infrared, gas chromatography (with flame ionization and thermal conductivity detectors),
hand-held portable monitors, and any other method determined to be equivalent and approved
before the test by negotiation with State and Federal Regulatopry Authorities. SEAS
also provides performance specification (PST) testing, relative accuracy test audits
(RATA), opacity audits, and calibration gas audits (CGA) for SO2, CO, NOx,
THC/VOC, O2, CO2 and Opacity CEM systems regulated by CFR Title 40
Part 60 and Part 75 standards.