Page 111 - Engineering Rock Mass Classification_ Tunnelling, Foundations and Landslides
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TABLE 7.7 Properties of Various Gases That May Be Present in a T
Gas Density Color Odor Source
Sulfur dioxide (SO2) 2.26 None
Burning Present in diese
sulfur blast fumes
Oxides of nitrogen Approx. Yellow- Stings Present in diese
1.5 brown nose blast fumes
Source: Mathews, 1996.
