Common Laboratory Glassware and Volumetric Glassware
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Common Laboratory Glassware and Volumetric Glassware Prepared By Michigan Department of Environmental Quality Operator Training and Certification Unit
description
Common Laboratory Glassware and Volumetric Glassware. Prepared By Michigan Department of Environmental Quality Operator Training and Certification Unit. GLASSWARE. Graduated Cylinder. Griffin Beaker. Erlenmeyer Flask. Graduated Pipet. GLASSWARE. Approximate Graduations. Griffin - PowerPoint PPT Presentation
Transcript of Common Laboratory Glassware and Volumetric Glassware
Common Laboratory Glassware
andVolumetric Glassware
Prepared ByMichigan Department of Environmental Quality
Operator Training and Certification Unit
GLASSWARE
GriffinBeaker
ErlenmeyerFlask
GraduatedCylinder
Graduated Pipet
GLASSWARE
GriffinBeaker
ApproximateGraduations
GLASSWARE
ErlenmeyerFlask
ApproximateGraduations
GLASSWARE
GraduatedCylinder
Used for Routine Volume Measurements of 25 mL or Greater
GLASSWARE
Graduated Pipet
Used for Routine Volume Measurements of 25 mL or Less
Wide TipUse When Solids in Sample
GLASSWARE
Graduated Pipet
NOT VOLUMETRIC
Wide TipUse When Solids in Sample
Volumetric GlasswareVolumetric Glassware
Required for HighAccuracy and Precision
Required When Preparing or UsingStandard Solutions
Volumetric GlasswareVolumetric Glassware
Volumetric Transfer Pipet
Accuracy and PrecisionStandard Solutions
BuretVolumetric
Flask
VOLUMETRIC VOLUMETRIC GLASSWARE
Must BeUsed
Properly
BURETBURET
ToDeliver
CalibrationTemperature
BURETBURET
CompletelyCoat
InsideSurface
RinseWith Titrant
NotCleanNot
Clean
BeadsBeadsofof
LiquidLiquid
RinseThreeTimes
Fill to AboveTop Graduation
DischargeAllAir
Bubbles
DrainUntilTopof
LiquidIs In
Graduations
CurvedSurfaceof Liquid
MENISCUS
MENISCUSREADER
X
XO
Proper ReadingProper Reading
Bottomof
Meniscusto
Top of Graduation
Increase TenGraduations
}
9.64 24.16
RecordInitial
Reading
AddIndicator
ProperGrip
MixWell
NearEndpoint
Split Drops TransferTo
FlaskRinseInto
Reaction
At EndpointRead Record
FinalReading
Final Reading – Initial Reading = Volume Delivered
ProperlyDisposeExcess
ProperlyClean
AirDry
ProperStorage
VolumetricTransferPipets
OneOneCalibrationCalibration
ToToDeliverDeliver
CalibrationCalibrationTemperatureTemperature
VolumetricVolumetricTransferTransfer
PipetsPipets
VolumetricVolumetricTransferTransfer
PipetsPipets
FillBy
Vacuum
FillBy
Vacuum
PipetBulb
Rinse
MustDrain Evenly
NotCleanNot
Clean
FillAbove
Calibration
WipeTip
DrainTo
Calibration
TouchContainer
ToRemove
Drop
AllowTo
Drain
TouchTipTo
Flask
SomeWill
RemainIn Tip
Exception
ETCHEDRingNOT
PaintedFOR
BLOW-OUT
ProperlyClean
AirDry
Using Volumetric PipetsUsing Volumetric Pipets1. Rinse with solution to be pipeted
(Observe for even draining)
2. Fill to above graduation
3. Wipe off outside of pipet
4. Drain to graduation( bottom of meniscus to top of graduation)
5. Touch tip to waste vessel
6. Transfer by gravity(vertical - don’t force)
7. Touch tip to inside of receiving flask
(clean pipet)
Volumetric FlasksVolumetric FlasksVolumetric FlasksVolumetric Flasks
TC ToContain
NOT Intended To DeliverNOT Intended To Deliver
To Prepare SolutionsWith Accurately Known Concentration
FillHalfAndMix
FillTo
BelowGraduation
FillDrop-wise
ToCalibration
InvertRapidly
TransferTo
ReagentBottle
ProperlyClean
AirDry
Volumetric GlasswareVolumetric Glassware
Volumetric Transfer Pipet
Accuracy and PrecisionStandard Solutions
BuretVolumetric
Flask
Common Laboratory Glassware
andVolumetric Glassware
Prepared ByMichigan Department of Environmental Quality
Operator Training and Certification Unit
