• Tape backup unit is supported.
Particulate and gaseous contamination specications
The following table denes the limitations that help avoid any damages to the IT equipment and/or, or both failure from particulate and
gaseous contamination. If the levels of particulate or gaseous pollution exceed the specied limitations and results in equipment damage or
failure, you must rectify the environmental conditions. Remediation of environmental conditions is the responsibility of the customer.
Table 30. Particulate contamination specications
Particulate contamination Specications
Air ltration
Data center air ltration as dened by ISO Class 8 per ISO 14644-1
with a 95% upper condence limit.
NOTE: This condition applies to data center environments
only. Air ltration requirements do not apply to IT
equipment designed to be used outside a data center, in
environments such as an oce or factory oor.
NOTE: Air entering the data center must have MERV11 or
MERV13 ltration.
Conductive dust Air must be free of conductive dust, zinc whiskers, or other
conductive particles.
NOTE: This condition applies to data center and non-data
center environments.
Corrosive dust
• Air must be free of corrosive dust.
• Residual dust present in the air must have a deliquescent point
less than 60% relative humidity.
NOTE: This condition applies to data center and non-data
center environments.
Table 31. Gaseous contamination specications
Gaseous contamination Specications
Copper Coupon Corrosion <300 Å/month per Class G1 as dened by ANSI/ISA71.04-1985.
Silver Coupon Corrosion <200 Å/month as dened by AHSRAE TC9.9.
NOTE: Maximum corrosive contaminant levels measured at ≤50% relative humidity.
Technical specications 125
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