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A method of test for SO₂ and SO₃ in flue gases
A comparison of the Smokescope and the Ringelmann chart
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Published Year
1950-1959 (2) *
Subject
Flue gases (1)
Smoke prevention (1)
Author
Burdick, L. R. (2) *
Berk, A. A. (1)
Ringelmann, Max, (1)