Dell EMC PowerEdge R620 Owner's Manual page 115

Environmental
NOTE: Applies to data center environments only. Air
filtration requirements do not apply to IT equipment
designed to be used outside a data center, in
environments such as an office or factory floor.
Conductive Dust
NOTE: Applies to data center and non-data center
environments.
Corrosive Dust
NOTE: Applies to data center and non-data center
environments.
Gaseous Contamination
NOTE: Maximum corrosive contaminant levels measured at ≤50% relative humidity.
Copper Coupon Corrosion Rate
Silver Coupon Corrosion Rate
NOTE: Air entering the data center must have MERV11
or MERV13 filtration.
Air must be free of conductive dust, zinc whiskers, or other
conductive particles.
• Air must be free of corrosive dust.
• Residual dust present in the air must have a deliquescent
point less than 60% relative humidity.
<300 Å/month per Class G1 as defined by ANSI/ISA71.04-1985.
<200 Å/month as defined by AHSRAE TC9.9.
Technical specifications 115