Particulate
and gaseous contamination specifications
The following
table defines the limitations that help avoid any equipment damage
or failure from particulate and gaseous contamination. If the levels
of particulate or gaseous pollution exceed the specified limitations
and result in equipment damage or failure, you may need to rectify
the environmental conditions. Remediation of environmental conditions
is the responsibility of the customer.
Table 1. Particulate
contamination specifications
Air filtration specification: Data
center air filtration defines, ISO Class 8 per ISO 14644-1 should
have a 95% upper confidence limit. Note: This condition applies only
to data center environments. 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 the MERV11 or MERV13 filtration. Conductive dust specification:
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 specification: 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.
Particulate contamination
Specifications
Air filtration
Data center air filtration defines, ISO Class
8 per ISO 14644-1 with a 95% upper confidence limit.
NOTE The ISO Class 8 condition
applies to data center environments only. This air filtration requirement
does 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 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 2. Gaseous contamination
specifications
The copper coupon corrosion rate
is <300 Å/month per Class G1 defines, ANSI/ISA71.04-2013.
The silver coupon corrosion rate is <200 Å/month defines, ANSI/ISA71.04-2013.
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.
Data is not available for the Topic
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