Particulate
and gaseous contamination specifications
The following
table defines the limitations that help avoid any equipment damage
or failure from particulates and gaseous contamination. If the levels
of particulates 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
as defined by 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 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 as defined by ISO Class
8 per ISO 14644-1 with 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 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 following table defines the limitations that help
avoid any damages to the IT equipment and/or failure from gaseous
contamination.
Gaseous contamination
Specifications
Copper coupon corrosion rate
<300 Å/month per Class G1 as defined
by ANSI/ ISA71.04-1985.
Silver coupon corrosion rate
<200 Å/month as defined by
AHSRAE TC9.9.
NOTE: Maximum
corrosive contaminant levels measured at ≤50% relative humidity.
Data is not available for the Topic
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