| Job Title |
Freezing-machine Operator |
| Job Description |
Tends Machine That Freezes Blood Plasma Preparatory To
Hydration Or Storage: Starts Machine That Circulates Solution Of
Dry Ice And Alcohol Over Rollers To Chill Them. Moves Blood
Plasma From Walk-in Freezer To Freezing Machine, Using
Handtruck. Places Bottles Of Blood Plasma Onto Rotating Rollers
Submerged In Cold Alcohol In Machine. Taps Revolving Bottles
With Metal Wand To Accelerate And Ensure Uniform Freezing Of
Plasma, Increasing Speed Of Tapping On Bottles When
Crystallization Does Not Occur Uniformly. Places Bottles Of
Plasma That Do Not Freeze Uniformly Into Reject Container And
Frozen Plasma On Trays For Further Processing. Reads Thermometer
To Ascertain That Temperature Of Solution Remains Constant,
According To Specifications. May Place Bottles On Rack To Drain
Off Alcohol Before Packing. May Tend Centrifuge Machine That
Separates Plasma From Red Corpuscles Present In Whole Blood. May
Tend Fractionator Machine That Breaks Down Plasma Into Proteins
By Centrifugal Action.
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