Table 17. Limits for particulates and gases (continued)Contaminant Limits1 ASHRAE 52.2-2008 - Method of Testing General Ventilation Air-Cleaning Devices forRemoval Efficiency by Particle Size. Atlanta: American Society of Heating, Refrigeratingand Air-Conditioning Engineers, Inc.2 The deliquescent relative humidity of particulate contamination is the relativehumidity at which the dust absorbs enough water to become wet and promote ionicconduction.3 ANSI/ISA-71.04-1985. Environmental conditions for process measurement and controlsystems: Airborne contaminants. Instrument Society of America, Research Triangle Park,North Carolina, U.S.A.Telecommunication regulatory statementThis product may not be certified in your country for connection by any meanswhatsoever to interfaces of public telecommunications networks. Furthercertification may be required by law prior to making any such connection. Contacta Lenovo representative or reseller for any questions.Electronic emission noticesWhen you attach a monitor to the equipment, you must use the designatedmonitor cable and any interference suppression devices that are supplied with themonitor.Federal Communications Commission (FCC) statementNote: This equipment has been tested and found to comply with the limits for aClass A digital device, pursuant to Part 15 of the FCC Rules. These limits aredesigned to provide reasonable protection against harmful interference when theequipment is operated in a commercial environment. This equipment generates,uses, and can radiate radio frequency energy and, if not installed and used inaccordance with the instruction manual, may cause harmful interference to radiocommunications. Operation of this equipment in a residential area is likely to causeharmful interference, in which case the user will be required to correct theinterference at his own expense.Properly shielded and grounded cables and connectors must be used in order tomeet FCC emission limits. Lenovo is not responsible for any radio or televisioninterference caused by using other than recommended cables and connectors or byunauthorized changes or modifications to this equipment. Unauthorized changesor modifications could void the user's authority to operate the equipment.This device complies with Part 15 of the FCC Rules. Operation is subject to thefollowing two conditions: (1) this device may not cause harmful interference, and(2) this device must accept any interference received, including interference thatmight cause undesired operation.Industry Canada Class A emission compliance statementThis Class A digital apparatus complies with Canadian ICES-003.Avis de conformité à la réglementation d'Industrie CanadaCet appareil numérique de la classe A est conforme à la norme NMB-003 duCanada.62 Installation and User's Guide