Type
Condition
Temperature or Specification
Storage
Six consecutively executed shock pulses in
the positive and negative x, y, and z axes (one
pulse on each side of the system) of 71 G for
up to 2 ms.
Maximum Altitude
Operating
3,048 m (10,000 ft)
Storage
12,000 m (39,370 ft).
Operating Altitude De-rating
Up to 35 °C (95 °F)
Maximum temperature is reduced by 1
°C/300 m (1 °F/547 ft) above 950 m (3,117 ft).
35 °C to 40 °C (95 °F to 104 °F)
Maximum temperature is reduced by 1 °C/175
m (1 °F/319 ft) above 950 m (3,117 ft).
40 °C to 45 °C (104 °F to 113 °F)
Maximum temperature is reduced by 1 °C/125
m (1 °F/228 ft) above 950 m (3,117 ft).
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. Re-mediation of environmental conditions is the responsibility of the
customer.
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.
Table 25. Particulate contamination specifications
Particulate contamination
Specifications
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
• Air must be free of corrosive dust.
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