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Gilson Company, Inc.
3.0 OPERATING INSTRUCTIONS
NOTE: Following these procedures closely and consistently will increase the accuracy and repeatability of your test
results.
Step 1. Use the dry, coarse-bristle brush to thoroughly clean all residue from the Aqua-Check vessel and chamber cap.
Step 1: Cleaning residue from Vessel
Step 2. Select a representative sample of the test material. Cohesive materials that do not readily separate into individual
particles, such as clay or silt soils, should be reduced by hand into small clumps.
Step 3. Referring to separate instructions for the electron-
ic balance, set-up and zero the balance. Place the
plastic sample cup on the balance and zero again.
Carefully add small amounts of sample material to
the cup until the balance shows the required 20g.
NOTE: If the moisture content of the material is
expected to exceed 20%, a 10g sample should be
used, but the value read on the gauge must then be
doubled. It is also possible to obtain better resolu-
tion of drier materials (<10%) by doubling the sam-
ple size and halving the gauge reading.
Step 1: Cleaning residue from Chamber Cap
Step 3: Sample material at 20g
Page 5
Gilson Aqua-Check Moisture Tester: MA-26X
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