Particulate And Gaseous Contamination Specifications - Dell EMC VxRail P570 Owner's Manual

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 29. Particulate contamination specifications
Particulate contamination
Air filtration
Conductive dust
Corrosive dust
Table 30. Gaseous contamination specifications
Gaseous contamination
Copper coupon corrosion rate
Silver coupon corrosion rate
NOTE: Maximum corrosive contaminant levels measured at ≤50% relative humidity.
Specifications
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.
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.
● 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.
Specifications
<300 Å/month per Class G1 as defined by ANSI/
ISA71.04-1985.
<200 Å/month as defined by AHSRAE TC9.9.
Technical specifications 27