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Seagate Kinetic HDD Product Manual, Rev. A 14
2.11 ENVIRONMENTAL PROTECTION
Seagate designs its products to meet environmental protection requirements worldwide, including regulations restricting
certain chemical substances.
2.11.1 European Union Restriction of Hazardous Substances (RoHS) Directive
The European Union Restriction of Hazardous Substances (RoHS)
Directive, restricts the presence of chemical
substances
including Lead, Cadmium, Mercury, Hexavalent Chromium, PBB and PBDE, in electronic products, effective
July 2006. This
drive is manufactured with components and materials that comply with the RoHS Directive.
2.11.2 China Restriction of Hazardous Substances (RoHS) Directive
This product has an Environmental Protection Use Period (EPUP) of 20 years. The following table
contains
information mandated by China's "Marking Requirements for Control of Pollution Caused
by Electronic
Information Products" Standard.
"O" indicates the hazardous and toxic substance content of the part (at the homogeneous material level) is lower than
the
threshold defined by the China RoHS MCV Standard.
"X" indicates the hazardous and toxic substance content of the part (at the homogeneous material level) is over the
threshold
defined by the China RoHS MCV Standard.
2.12 CORROSIVE ENVIRONMENT
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 corrosive chemicals, as the installation
environment can affect electronic drive component reliability. The silver, 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 vulcanized rubber, that can outgas corrosive compounds should be minimized or eliminated.
Replacing materials near circuitry with sulfide-free alternatives may extend the useful life of any electronic equipment.