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21.
If spotting is detected on the instruments, the first step would be to use an
ordinary eraser to remove the spot. If there is no pitting under the spot
then the spot was only dirt. Dirt spots on an instrument may be an
indication that the autoclave needs to be cleaned or that the instruments
were not adequately cleaned or dried. If removal of the spot reveals
pitting, the spot was most likely rust. Rust spots on an instrument are not
uncommon on inexpensive instruments. It may also be an indication that
the instruments were rinsed in tap water with a high content of minerals.
These minerals, when exposed to high temperature and steam, will
accelerate the oxidation of the metal. One suggestion would be to final
rinse the instruments in a distilled water bath.
22.
If the instruments exhibit a discoloration, this can be due to the mixing of
carbon steel and stainless steel. When these two metals come into contact
with each other an electrolysis occurs that breaks down the metal. The
best solution is to separately wrap the carbon steel to insulate it from
other instruments or the trays.
23.
Items should not be allowed to touch the walls of the Chamber as the hot
metal can damage the item.
