Q1: 1st page

PIPETTES / PIPETS

These are glass tubes used for transferring or measuring solutions.

PIPETTES / PIPETS

In the clinical laboratory, rubber tubing or bulbs are used when pipetting to avoid mouth contact of a pathogen.

TC

TD

pipettes classification 1. design

Blowout

Self draining

Pipettes classification 2. drainage characteristics

Measuring

Graduated

pipettes classification 3. types

TO CONTAIN” (TC)

Holds or contains a particular volume but does not dispense that exact volume.

TO DELIVER” (TD)

Will dispense the volume indicated.

BLOWOUT

Continuous etched ring or two small, close continuous rings located near the top of the pipet.

SELF-DRAINING

Allows the contents of the pipet to drain by gravity.

SEROLOGIC

Graduation marks to the tip; generally, a blowout pipet.

Mohr

No graduations to the tip; self- draining, but the tip should not be allowed to touch the vessel while the pipet is draining.

Micropipette

Total holding of less than 1 ml.

serologic

mohr

bacteriologic

ball, kolmer, kahn

micropipette

measuring or graduated pipettes

volumetric

ostwald-folin

pasteur pipet

automatic macro/micropipettes

transfer pipettes

volumetric

Dispense or transfer aqueous solutions; self-draining.

Ostwald-Folin

For biologic fluids having a viscosity greater than that of water; blowout.

Pasteur pipets

no calibration marks

Automatic Macropipettes/Micropipettes

most routinely used

air displacement

positive displacement

dispensers

types of am