Page 367 - Industrial Ventilation Design Guidebook
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FIGURE 5.52 The determination of the geometric mean concentration and geometric standard deviation. In the sample: m g = c 5Q = 200 ppm;
s g = Cso/C| 5.9 = 200 ppm/133 ppm = 1.5 - Cg^/Cg) = 300 ppm 7200 ppm. 192
