A
Flatness tolerance
B
Measuring point distance
Flatness tolerance depending on the measuring point distance
Fig. 65278
Measuring point distance
Flatness tolerance
Area
0.5 m (1.64 ft)
2 mm (0.08 in)
Load-bearing points.
10 m (33 ft)
12 mm (½ in)
Installation surface.
Examples
Tab. 2-3
Measuring procedure:
The straight edge is placed on the high points of the surface
and determines the depth gauge at the lowest point. For the
selected measuring point distance the depth gauge may not be
greater than the flatness tolerance.
1
Straightedge
2
Vanishing line of the straight-
edge
3
Surface
l1
Measuring point distance
t1
Depth gauge
Measuring procedure for determination of the depth gauge
Fig. 65581
B1161en
Installation site - Version 1
2
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7
