DELL E23S Series User Manual

Page of 157
NOTE: This section defines the limits to help avoid IT equipment damage and/or failure from particulates and 
gaseous contamination. If it is determined that levels of particulates or gaseous pollution are beyond the limits 
specified below and are the reason for the damage and/or failures to your equipment, it may be necessary for you 
to re-mediate the environmental conditions that are causing the damage and/or failures. Re-mediation of 
environmental conditions will be the responsibility of the customer.
Air Filtration
NOTE: 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.
Data center air filtration as defined by ISO Class 8 per ISO 
14644-1 with a 95% upper confidence limit.
NOTE: Air entering the data center must have 
MERV11 or MERV13 filtration.
Conductive Dust
NOTE: Applies to data center and non-data center 
environments.
Air must be free of conductive dust, zinc whiskers, or 
other conductive particles.
Corrosive Dust
NOTE: 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.
Gaseous Contamination
NOTE: Maximum corrosive contaminant levels measured at ≤50% relative humidity.
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.
 
138