Tips and assistance
18
Conversion to water content
Water content % = (wet weight-dry weight) / dry weight × 100
Example
Wet weight: 180 g
Dry weight: 150 g
Percent by weight: (180 - 150) / 150 × 100 = 16.6%
What constitutes dry, or at risk, or damp?
The values indicated serve as guideline figures for assessing the
materials. The values are typical inner area values
Characteristic curve Material Dry At risk Damp /
very damp
Characteristic curve 1
or 2 inside heated
Beech, fir, larch... < 12 12...15 > 15
Characteristic cur
ve 1
or 2 inside unheated
Oak, pine, maple
wood...
< 15 15...20 > 20
Characteristic curve 3 Cement screed < 3 3...5 > 5
Characteristic curve 3 Concrete < 2.2 2.2...4.4 > 4.4
Characteristic curve 4 Anhydrite screed < 0.5 0.5...1 > 1
Characteristic curve 5 Cement mortar < 3 3...5 > 5
Characteristic curve 6 Lime mortar < 2 2...4 > 4
Characteristic curve 6 Gypsum < 2 2...4 > 4
Characteristic curve 7 Brick < 1 1...3 > 3
Guideline values for the installation moisture of wood, which sets
in as an average after a certain period in use-status (DIN 1052-1
(4/88) Para. 4.2.1.):
Char. curve Application area Wood humidity in % by weight
1 or 2 buildings closed on all sides with heating 9 ± 3
1 or 2 buildings closed on all sides without heating 12 ± 3
1 or 2 roofed open buildings 15 ± 3
1 or 2 constructions which are open to the weather on all sides 18 ± 6
If we could not answer your question, please contact your dealer
or Testo Customer Service.
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