HP 9114B Operator's Manual page 24

Operate your system in a relatively clean environment
Airborne contaminants and particlesaccidently
dropped onto the disc will cause your disc to
wear prematurely and maycause unreliable
data storage and retrieval operations. Someof
the most common contaminants are dust,
smoke, ashes, eraser crumbs, and
breadcrumbs. NEVER ATTEMPT TO BLOW
SMALL PARTICLES FROM THE DISC
Chemical vapors may alsocause premature
disc wear
Maintain proper temperature and humidity
Theproper operating range is 10°C (50°F) to
40°C (UF) and 20% 10 80% relative
humidity. While temperature can be
controlled, it may be necessary to make
special provisions to keep the humidity in the
proper range. Althoughthedisc will continue
to operate qutside the normal humidity range,
it will wear more quicklyandwill havea
higher error rate
Avoid magnetic fields
The data is stared on thedisc magnetically
and can be erased by an external magnetic
field. Avoid placing a disc near power
transformers, magnets, large disc memories,
motors or CRTs (Cathode Ray Tubes)
Don't
Touchthe surfaceof the disc
Thethickness of a fingerprintis enough toLift
theheadoff thedisc and cause errors, The
vils in a fingerprint also collect dust which can
cause the disc towearfaster
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