Glassware: Types, Uses, and Care Flashcards
Has one-fill line
Volumetric pipette
Basis of tolerance
Total capacity
For diluting highly viscous fluids
To contain glass pipettes
Designed for a single volume
Volumetric flask
Safety reminders for glass pipettes
Use a mechanical suction bulb
Wear gloves
Transports a measured volume of liquid
Glass pipette
Purpose of beakers
Used to hold stock solutions or diluents for short term storage or during laboratory procedures
Used to transferliquid or reagent to another container
TC vessels
Volumetric flasks
Tolerance provides information about: _____ and ______
Accuracy of the device
Estimate of the uncertainty
For dilutions of whole blood
Sahli Pipette
Glass is notorious for:
Adsorbing trace chemicals
Class B Tolerance
Twice as large for Class A
Attack glass rate of alkaline solutions
9 mcg/h
Two differences between Measuring and Transfer pipettes
Volume
Accuracy
Has a rounded bulb close to the delivery tip
Ostwald-Folin Transfer Pipette
Least accurate flask
Beaker
Generally TC pipettes
Mechanical Pipettes
Functions of Erlenmeyer flasks
Used in solution preparation
Help dissolve a solid solute into solution
Used to acid wash glasswares
3-6 M HCl
Delivers small volumes of viscous solutions
Ostwald-Folin
Has no base mark
Serological pipette
Used for volume determination of an unknown fluid
Graduated cylinder
Time for soaking clean glassware in HCl
One hour
Used for preparing large amounts of standard solutions and reagents
Volumetric flask
