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Technical Information
Cleaning
Cleaning Safety
Cleaning a diffusion pump involves the use of acetone and alcohol, both of which
are toxic and explosive. Take careful note of the following warnings before starting
a cleaning process.
When heated, sprayed or exposed to high temperature equipment, these solvents
become flammable and explosive, causing serious injury or death.
When heated or sprayed, acetone or alcohol also becomes 4 to 5 times heavier
than air and will flow down, settling in tanks, pits, and low areas, thus displacing
air which can kill by asphyxiation.
Acetone, alcohol, and other solvents are irritants, narcotics, depressants, and
carcinogenic. Their inhalation and ingestion may produce serious effects.
Prolonged or continued contact with the skin will result in absorption through
the skin and moderate toxicity.
• Do not use near a high temperature source. Ventilate the working area with a
WARNING
blower and use in a large, well-ventilated room. The use of a self-contained
breathing apparatus may also be necessary.
• Always ensure that cleaning operations are carried out in large, well-
ventilated rooms. Wear eyeshields, gloves, and protective clothing.
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High Throughput Diffusion Pumps User Manual
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