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DEVELOPMENT OF A TEST METHOD FOR THE MEASUREMENT OF GASEOUS METHANOL EMISSIONS FROM STATIONARY SOURCES
Citation:
Pate, B., M. Peterson, R. Jayanty, F. Wilshire, AND J. Knoll. DEVELOPMENT OF A TEST METHOD FOR THE MEASUREMENT OF GASEOUS METHANOL EMISSIONS FROM STATIONARY SOURCES. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/A-93/191.
Description:
Methanol was designated under Title III of the Clean Air Act Amendments of 1990 as a pollutant to be regulated. he U.S. EPA, through a contract with Research Triangle Institute, has developed a test method for the measurement of methanol emissions from stationary sources. he methanol sampling train (MST) consists of a glass-lined heated probe, two knockout traps and three sorbent cartridges packed with Anasorb 747, a beaded, activated carbon. nasorb 747 samples are desorbed with a 1:1 mixture of carbon disulfide and N,N-dimethylformamide. amples are analyzed by gas chromatography with flame ionization detection. Following laboratory testing, field tests of the MST and the National Council for Air and Stream Improvement (NCASI) sampling method for methanol were conducted at a paper and pulp mill. he sampling location was an inlet vent to a softwood bleach plant scrubber. n accordance with EPA Method 301, two pairs of trains were run in parallel for six runs, collecting a total of twenty-four samples by each method. uring each test run, half of the trains were spiked with a known amount of methanol. he average percent recovery of the spike was higher for the MST method than for the NCASI method. oth methods had a relative standard deviation of less than 5 percent. he practical limit of quantitation was about 2 ppm for the MST method.