Dell PowerEdge T440 EMC Installation and Service Manual - Page 34
Table 27. Particulate contamination specifications continued
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Table 27. Particulate contamination specifications (continued) Particulate contamination Specifications 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 28. Gaseous contamination specifications Gaseous contamination Specifications Copper coupon corrosion rate
Table 27. Particulate contamination specifications (continued)
Particulate
contamination
Specifications
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 28. Gaseous contamination specifications
Gaseous contamination
Specifications
Copper coupon corrosion rate
<300 Å/month per Class G1 defines, ANSI/ISA71.04-2013.
Silver coupon corrosion rate
<200 Å/month defines, ANSI/ISA71.04-2013.
NOTE:
Maximum corrosive contaminant levels measured at ≤50% relative humidity.
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Technical specifications