Lenovo 70B4, User Manual And Hardware Maintenance Manual

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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 15. Limits for particulates and gases
Contaminant Limits
Particulate • The room air must be continuously filtered with 40% atmospheric dust spot efficiency
(MERV 9) according to ASHRAE Standard 52.2
1
.
• Air that enters a data center must be filtered to 99.97% efficiency or greater, using
high-efficiency particulate air (HEPA) filters that meet MIL-STD-282.
• The deliquescent relative humidity of the particulate contamination must be more than 60%
2
.
• The room must be free of conductive contamination such as zinc whiskers.
Gaseous • Copper: Class G1 as per ANSI/ISA 71.04-1985
3
• 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.
Polyvinyl Chloride (PVC) cable and cord notice
WARNING: Handling the cord on this product or cords associated with accessories sold with this product
will expose you to lead, a chemical known to the State of California to cause cancer, and birth defects or
other reproductive harm.
Wash hands after handling .
Recycling information
Lenovo encourages owners of information technology (IT) equipment to responsibly recycle their equipment
when it is no longer needed. Lenovo offers a variety of programs and services to assist equipment owners in
recycling their IT products. For information on recycling Lenovo products, go to:
http://www.lenovo.com/recycling
Battery return program
This product may contain a lithium or lithium ion battery. Consult your user manual or service manual for
specific battery information. The battery must be recycled or disposed of properly. Recycling facilities may
not be available in your area. For information on disposal or batteries outside the United States, go to
http://www.lenovo.com/recycling or contact your local waste disposal facility.
Battery recycling information for the United States and Canada
Appendix A. Notices
221