Table 35 Particulate contamination specifications (continued)
Particulate contamination
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.
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
l
Air must be free of corrosive dust.
l
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.
The copper coupon corrosion rate is <300 Å/month per Class G1 as defined by ANSI/
ISA71.04-1985. The silver coupon corrosion rate is <200 Å/month as defined by
AHSRAE TC9.9.
Table 36 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
202
VxFlex Ready Node R840
Hardware Field Replacement Unit and Service Manual
