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value literature
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0.04 ppm 1
0.10 ppm 1
0.11 ppm 1
0.12 ppm 1
0.18 ppm 1
0.19 ppm 1
0.20 ppm 1
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count 7
average 0.13 ppm
standard deviation 0.05 ppm(40 %)

UNIVERSITY OF TECHNOLOGY VIENNA
Institute of Chemical Engineering, Fuel and Environmental Technology
Getreidemarkt 9/159
A-1060 Vienna
Austria