Particulate Contamination; Product Recycling And Disposal - IBM System x3650 M2 Installation And User Manual

Particulate contamination

Product recycling and disposal

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Attention: Airborne particulates (including metal flakes or particles) and reactive
gases acting alone or in combination with other environmental factors such as
humidity or temperature might pose a risk to the server that is described in this
document. Risks that are posed by the presence of excessive particulate levels or
concentrations of harmful gases include damage that might cause the server to
malfunction or cease functioning altogether. This specification sets forth limits for
particulates and gases that are intended to avoid such damage. The limits must not
be viewed or used as definitive limits, because numerous other factors, such as
temperature or moisture content of the air, can influence the impact of particulates
or environmental corrosives and gaseous contaminant transfer. In the absence of
specific limits that are set forth in this document, you must implement practices that
maintain particulate and gas levels that are consistent with the protection of human
health and safety. If IBM determines that the levels of particulates or gases in your
environment have caused damage to the server, IBM may condition provision of
repair or replacement of servers or parts on implementation of appropriate remedial
measures to mitigate such environmental contamination. Implementation of such
remedial measures is a customer responsibility.
Table 14. Limits for particulates and gases
Contaminant Limits
Particulate v The room air must be continuously filtered with 40% atmospheric dust
v Air that enters a data center must be filtered to 99.97% efficiency or
v The deliquescent relative humidity of the particulate contamination
v The room must be free of conductive contamination such as zinc
Gaseous v Copper: Class G1 as per ANSI/ISA 71.04-1985
v Silver: Corrosion rate of less than 300 Å in 30 days
1
ASHRAE 52.2-2008 - Method of Testing General Ventilation Air-Cleaning Devices for
Removal Efficiency by Particle Size. Atlanta: American Society of Heating, Refrigerating and
Air-Conditioning Engineers, Inc.
2
The deliquescent relative humidity of particulate contamination is the relative humidity at
which the dust absorbs enough water to become wet and promote ionic conduction.
3
ANSI/ISA-71.04-1985. Environmental conditions for process measurement and control
systems: Airborne contaminants. Instrument Society of America, Research Triangle Park,
North Carolina, U.S.A.
This unit must be recycled or discarded according to applicable local and national
regulations. IBM encourages owners of information technology (IT) equipment to
responsibly recycle their equipment when it is no longer needed. IBM offers a
variety of product return programs and services in several countries to assist
equipment owners in recycling their IT products. Information on IBM product
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spot efficiency (MERV 9) according to ASHRAE Standard 52.2
greater, using high-efficiency particulate air (HEPA) filters that meet
MIL-STD-282.
2
must be more than 60% .
whiskers.
1
.
3
135
Appendix B. Notices