Dell PowerEdge R840 EMC Technical Specifications - Page 26

Particulate contamination Conductive dust Corrosive dust Specifications NOTE: This condition 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. 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. NOTE: This condition applies to data center and nondata center environments. • 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 nondata center environments. Table 22. Gaseous contamination specifications Gaseous contamination Copper Coupon Corrosion Silver Coupon Corrosion Specifications