Dell PowerEdge R240 EMC PowerEdge R240 Installation and Service Manual - Page 105
Table 32. Particulate contamination specifications continued
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Table 32. Particulate contamination specifications (continued) Particulate contamination Specifications Conductive dust Air must be free of conductive dust, zinc whiskers, or other conductive particles. NOTE: This condition applies to data center and nondata 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 nondata center environments. Table 33. Gaseous contamination specifications Gaseous contamination Copper Coupon Corrosion Silver Coupon Corrosion Specifications
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Table 32. Particulate contamination specifications (continued)
Particulate contamination
Specifications
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 33. Gaseous contamination specifications
Gaseous contamination
Specifications
Copper Coupon Corrosion
<300 Å/month per Class G1 as defined by ANSI/ISA71.04-1985.
Silver Coupon Corrosion
<200 Å/month as defined by AHSRAE TC9.9.
NOTE:
Maximum corrosive contaminant levels measured at ≤50% relative humidity.
Technical specifications
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