Dell EMC PowerEdge R240 - Particulate and gaseous contamination specifications

Particulate and gaseous contamination specications
The following table denes 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 specied 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 20. Particulate contamination specications
Particulate contamination Specications
Air ltration
Data center air ltration as dened by ISO Class 8 per ISO
14644-1 with a 95% upper condence 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 oce 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 21. Gaseous contamination specications
Gaseous contamination Specications
Copper Coupon Corrosion <300 Å/month per Class G1 as dened by ANSI/ISA71.04-1985.
Silver Coupon Corrosion <200 Å/month as dened by AHSRAE TC9.9.
NOTE: Maximum corrosive contaminant levels measured at ≤50% relative humidity.
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