Hach AS950 Operation Manual page 33

Non-metal
Acrylic
Glass
Wood Stave
Laminated, treated
Clay Common drainage
tile
Vitrified sewer
Vitrified sewer with
manholes, inlets,
etc.
Brick Glazed
Cement lining
Concrete Culvert, straight and
free of debris
Culvert with bends,
connections and
some debris
Sewer with
manholes, inlet,
straight, etc.
Unfinished, steel
form
Unfinished, smooth
wood form
Unfinished, rough
wood form
Sanitary sewers
coated with sewage
slimes
Paved invert, sewer,
smooth bottom
Rubble masonry,
cemented
Metal
Smooth steel Painted
surface
Not painted
Corrugated
Non-metal
Cement Neat surface
Mortar
Table 12 Closed conduit—partly full (continued)
—
—
Table 13 Lined or built-up channels
—
0.008 0.009
0.009 0.010
0.010 0.012
0.015 0.017
0.011 0.013
0.011 0.014
0.013 0.015
0.011 0.013
0.012 0.015
0.011 0.011
0.011 0.013
0.013 0.015
0.012 0.013
0.012 0.014
0.015 0.017
0.012 0.013
0.016 0.019
0.018 0.025
0.011 0.012
0.012 0.013
0.021 0.025
0.010 0.011
0.011 0.013
0.010
0.013
0.014
0.020
0.017
0.017
0.017
0.015
0.017
0.013
0.014
0.017
0.014
0.016
0.020
0.016
0.020
0.030
0.014
0.017
0.030
0.013
0.015
English 31