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Atmospheric Condition
Environments that contain elevated levels of corrosives (e.g., hydrogen sulfide, sulfur oxides, or hydrochloric acid,
sulfurous gases, chlorine and nitric oxide) should be avoided and ideally kept below G2 severity level defined in
ISA–71.04–1985. Care must be taken to avoid using any compound/material in a way that creates an elevated level
of corrosive materials in the atmosphere surrounding the disk drive. Vulcanized rubber is an example of a material
which may contain corrosive compound/materials.
Care must also be taken to avoid the use of any organometallic (e.g., organosilicones or organotins) compound /
material in a way that creates elevated vapor levels of these compounds / materials in the atmosphere surrounding
the disk drive. Silicone-based Thermal Interface Materials (TIM), silicone-based tapes, caulking / RTV pastes,
silicone rubbers and silicone oil lubricants are examples of materials which may create elevated vapor levels of
organometallic compound / materials.
Use of the disk drive in these abnormal or other chemically-challenging environments is not recommended and
increases the risk for failure. If any of these materials are considered in system design, it is recommended to
consult with Western Digital.
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Western Digital Ultrastar DC HC310 SATA Product Manual