Gilson Aqua-Check Moisture Tester, MA-26X 7
STEP 9.Takinggreatcarethattheblackdotonthe
chamber cap is facing away from your face and body,
slowlyloosenthetopscrewtoventpressurizedgasfrom
thevessel.
STEP 10.Place theusedsample/reagent mixtureand
residue in an open dry container and dispose of in
accordance with local regulations or Section 13 of the
MSDS.UsetheCoarse-BristleBrushtocleanthevessel
andprepareforthenexttest.
S TE P 7. Agitatingthesample:
a.
Without Pulverizing Balls: HoldtheAqua-Check
vertically with the gauge facing down and agitate
vigorouslyfor5–10seconds.TurntheAqua-Check
around,andwiththegaugefacingupagitateagain
for5–10seconds.Tapthesidessothatthesample
fallsintothechambercap.Thisprocessshouldbe
repeatedfor1–3minutes,oruntilthegaugereading
inStep8hasstabilized.
b.With Pulverizing Balls:HoldtheAqua-Check
horizontallyanduseanorbitalmotiontospinthe
balls around inside the chamber, pulverizing the
sample. Agitate for 20 seconds and rest for 20
seconds, repeating the process at least three
times.Periodicallycheckthepositionofthegauge
indicator. Continue the agitation cycle until the
indicatorhasstabilized.Somehighlyplasticclays
mayrequire3minutesormoreofagitation.
STEP 8. Read the pressure gauge at eye level
whileholding thevessel horizontally.Waitforthe
indicatorneedletostopmoving.Thegaugereads
directly in percent water content of wet weight.
Accuracy may be improved by establishing a
correctionchartasshowninASTMD4944.
STEP9:Looseningtopscrewtovent
pressurizedgas
STEP8:Readingthepressuregaugeateyelevel
STEP7B:Usinganorbitalmotiontospintheballs
aroundinsidethechamber
7
8
9
10
