Seagate ST3500071FC ユーザーズマニュアル

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NL35 Series FC Product Manual, Rev. D

Seagate electronic drive components pass accelerated corrosion testing equivalent to 10 years exposure to 
light industrial environments containing sulfurous gases, chlorine and nitric oxide, classes G and H per ASTM 
B845. However, this accelerated testing cannot duplicate every potential application environment.

Users should use caution exposing any electronic components to uncontrolled chemical pollutants and corro-
sive chemicals as electronic drive component reliability can be affected by the installation

 

environment. The sil-

ver, copper, nickel and gold films used in Seagate products are especially sensitive to the presence of sulfide, 
chloride, and nitrate contaminants. Sulfur is found to be the most damaging. In addition, electronic components 
should never be exposed to condensing water on the surface of the printed circuit board assembly (PCBA) or 
exposed to an ambient relative humidity greater than 95%. Materials used in cabinet fabrication, such as vulca-
nized rubber, that can outgas corrosive compounds should be minimized or eliminated. The useful life of any 
electronic equipment may be extended by replacing materials near circuitry with sulfide-free alternatives.

The typical sound power during idle mode as measured to ISO 7779 specification are listed in the table below. 

There will not be any discrete tones more than 10 dB above the masking noise on typical drives when mea-
sured according to Seagate specification 30553-001. There will not be any tones more than 24 dB above the 
masking noise on any drive.

See Section 2.1.2.

3.1 bels