Corrosion Test; Atmospheric Condition; Figure 4 Limits Of Temperature And Humidity - Hitachi HDS723020BLA642 Specifications

Note: Storage temperature range is 0 to 70°C
6.2.2

Corrosion test

The drive shows no sign of corrosion inside and outside of the hard disk assembly and is functional after being
subjected to seven days at 50°C with 90% relative humidity.
6.2.3

Atmospheric condition

Environments that contain elevated levels of corrosives (e.g. hydrogen sulfide, sulfur oxides, or hydrochloric
acid) should be avoided. 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. Care must also be taken to
avoid use of any organometallic (e.g. organosilicon or organotin) compound/material in a way that creates
elevated vapor levels of these compounds/materials in the atmosphere surrounding the disk drive.

Figure 4 Limits of temperature and humidity

Hitachi hard disk drive specifications
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