Owners Manual

Table 18. Environmental specification (continued)

Environmental

40 °C–45°C (104 °F–113°F) Maximum temperature is reduced by 1°C/125 m (1°F/228 ft)

above 950 m (3,117 ft).

Particulate contamination

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 percent 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 from 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.

Related References

Expansion cards and expansion card riser on page 69

Technical specifications