1、NFPA 99C Standard on Gas and Vacuum Systems 2005 Edition NFPA, 1 Batterymarch Park, Quincy, MA 02169-7471 An International Codes and Standards Organization IMPORTANT NOTICES AND DISCLAIMERS CONCERNING NFPA DOCUMENTSNOTICE AND DISCLAIMER OF LIABILITY CONCERNING THE USE OF NFPA DOCUMENTSNFPA codes, st
2、andards, recommended practices, and guides, of which the document contained herein is one, are de-veloped through a consensus standards development process approved by the American National Standards Institute.This process brings together volunteers representing varied viewpoints and interests to ac
3、hieve consensus on fire andother safety issues. While the NFPA administers the process and establishes rules to promote fairness in the develop-ment of consensus, it does not independently test, evaluate, or verify the accuracy of any information or the soundnessof any judgments contained in its cod
4、es and standards.The NFPA disclaims liability for any personal injury, property or other damages of any nature whatsoever, whetherspecial, indirect, consequential or compensatory, directly or indirectly resulting from the publication, use of, or relianceon this document. The NFPA also makes no guara
5、nty or warranty as to the accuracy or completeness of any informationpublished herein.In issuing and making this document available, the NFPA is not undertaking to render professional or other servicesfor or on behalf of any person or entity. Nor is the NFPA undertaking to perform any duty owed by a
6、ny person or entityto someone else. Anyone using this document should rely on his or her own independent judgment or, as appropriate,seek the advice of a competent professional in determining the exercise of reasonable care in any given circumstances.The NFPA has no power, nor does it undertake, to
7、police or enforce compliance with the contents of this document.Nor does the NFPA list, certify, test or inspect products, designs, or installations for compliance with this document.Any certification or other statement of compliance with the requirements of this document shall not be attributable t
8、othe NFPA and is solely the responsibility of the certifier or maker of the statement.ADDITIONAL NOTICES AND DISCLAIMERSUpdating of NFPA DocumentsUsers of NFPA codes, standards, recommended practices, and guides should be aware thatthese documents may be superseded at any time by the issuance of new
9、 editions or may beamended from time to time through the issuance of Tentative Interim Amendments. An offi-cial NFPA document at any point in time consists of the current edition of the documenttogether with any Tentative Interim Amendments and any Errata then in effect. In order todetermine whether
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12、 be considered to be, nor be relied upon as, a FormalInterpretation.PatentsThe NFPA does not take any position with respect to the validity of any patent rightsasserted in connection with any items which are mentioned in or are the subject of NFPAcodes, standards, recommended practices, and guides,
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16、 wide variety of bothpublic and private uses. These include both use, by reference, in laws and regulations, anduse in private self-regulation, standardization, and the promotion of safe practices andmethods. By making this document available for use and adoption by public authorities andprivate use
17、rs, the NFPA does not waive any rights in copyright to this document.Use of NFPA documents for regulatory purposes should be accomplished through adop-tion by reference. The term “adoption by reference” means the citing of title, edition, andpublishing information only. Any deletions, additions, and
18、 changes desired by the adoptingauthority should be noted separately in the adopting instrument. In order to assist NFPA infollowing the uses made of its documents, adopting authorities are requested to notify theNFPA (Attention: Secretary, Standards Council) in writing of such use. For technical as
19、sis-tance and questions concerning adoption of NFPA documents, contact NFPA at the addressbelow.For Further InformationAll questions or other communications relating to NFPA codes, standards, recommendedpractices, and guides and all requests for information on NFPA procedures governing itscodes and
20、standards development process, including information on the procedures forrequesting Formal Interpretations, for proposing Tentative Interim Amendments, and forproposing revisions to NFPA documents during regular revision cycles, should be sent toNFPA headquarters, addressed to the attention of the
21、Secretary, Standards Council, NFPA,1 Batterymarch Park, P.O. Box 9101, Quincy, MA 02269-9101.For more information about NFPA, visit the NFPA website at www.nfpa.org.Copyright 2005, National Fire Protection Association, All Rights ReservedNFPA 99CStandard onGas and Vacuum SystemsExcerpted from NFPA 9
22、9, Standard for Health Care Facilities, 2005 edition2005 EditionThe text contained herein is a reprint of text from NFPA 99, Standard for Health Care Facilities,2005 edition, covering requirements and recommendations for gas and vacuum systems.The 2005 edition of NFPA 99, Standard for Health Care Fa
23、cilities, was prepared by the Tech-nical Committees on Administration, Electrical Equipment, Electrical Systems, Gas DeliveryEquipment, Health Care Emergency Preparedness and Disaster Planning, Hyperbaric andHypobaric Facilities, and Piping Systems, released by the Technical Correlating Committee on
24、Health Care Facilities and acted on by NFPA at its November Association Technical Meeting heldNovember 1317, 2004, in Miami Beach, FL. It was issued by the Standards Council on January 14,2005, with an effective date of February 7, 2005, and supersedes all previous editions.The 2005 edition of NFPA
25、99 was approved as an American National Standard on February7, 2005.Readers are cautioned that NFPA 99 is structured so that the applicability of requirementsin Chapters 4 through 12 are specified for the health care facilities listed in Chapters 13through 18 and Chapter 21.Origin and Development of
26、 NFPA 99CThe gas systems portion of NFPA 99C originated from NFPA 56F, Standard for NonflammableMedical Gas Systems. This document was incorporated into NFPA 99 during the processing ofthe 1987 edition of NFPA 99.The vacuum systems portion of NFPA 99C originated from NFPA 56K, Recommended Practicefo
27、r Medical Surgical Vacuum Systems. The 1980 edition of NFPA 56K was simultaneously revisedto a standard and incorporated into the 1984 edition of NFPA 99.The 1999 edition reorganized the chapter configuration and added a new Chapter 20 onfree-standing birthing centers.The 2002 edition was revised to
28、 meet the requirements of the Manual of Style. Gas andvacuum piping systems were reorganized to be more user friendly.The 2005 edition added new pipe joining methods to Chapter 5, and Chapter 12 onHealth Care Emergency Management was modified to correlate with NFPA 1600, Standard onDisaster/Emergenc
29、y Management and Business Continuity Programs.99C1Technical Correlating Committee on Health Care Facilities (HEA-AAC)Douglas S. Erickson, ChairAmerican Society for Healthcare Engineering, VI URep. American Society for Healthcare EngineeringConstance Bobik, B to animal chambers, the size of which pre
30、cludeshuman occupancy; and to those in which the chamber atmo-sphere contains an oxygen partial pressure greater than an abso-lute pressure of 21.3 kPa (3.09 psi) (0.21 atmospheres).1.1.21 Chapter 21, Freestanding Birthing Centers, addressesthe requirements for the safe use of electrical and gas equ
31、ip-ment, and for electrical, gas, and vacuum systems used for thedelivery and care of infants in freestanding birthing centers.1.2 Purpose.1.2.1 The purpose of this standard is to provide minimum re-quirements for the performance, maintenance, testing, and safepractices for facilities, material, equ
32、ipment, and appliances, in-cluding other hazards associated with the primary hazards.1.3 Application.1.3.1 This document shall apply to all health care facilities.1.3.2 Construction and equipment requirements shall be ap-plied only to new construction and new equipment, except asmodified in individu
33、al chapters. Only the altered, renovated, ormodernized portion of an existing system or individual compo-nent shall be required to meet the installation and equipmentrequirements stated in this standard. If the alteration, renova-tion, or modernization adversely impacts existing performancerequireme
34、nts of a system or component, additional upgradingshall be required.1.3.3 Chapters 13 through 19 of NFPA 99 specify the condi-tions under which the requirements of Chapters 4 through 12of NFPA 99 shall apply in Chapters 13 through 19 of NFPA 99.1.3.4 This document is intended for use by those person
35、sinvolved in the design, construction, inspection, and opera-tion of health care facilities and in the design, manufacture,and testing of appliances and equipment used in patient careareas of health care facilities. Nonflammable piped medicalgases covered by this document include, but are not limite
36、dto, oxygen, nitrogen, nitrous oxide, medical air, carbon diox-ide, and helium.1.4 Equivalency.1.4.1 The authority having jurisdiction for the enforcementof this document shall be permitted to grant exceptions to itsrequirements.1.4.2 Nothing in this standard is intended to prevent the useof systems
37、, methods, or devices of equivalent or superior qual-ity, strength, fire resistance, effectiveness, durability, and safetyto those prescribed by this standard. Technical documenta-tion shall be submitted to the authority having jurisdiction todemonstrate equivalency. The system, method, or device sh
38、allbe approved for the intended purpose by the authority havingjurisdiction.1.5 Units and Formulas.1.5.1* Primary units will be trade units, secondary will be theconversion. Although it is common practice for medical appli-ances to have metric units on their dials, gauges, and controls,many componen
39、ts of systems within the scope of this docu-ment, which are manufactured and used in the United States,employ nonmetric dimensions. Since these dimensions (suchas nominal pipe sizes) are not established by the National FireProtection Association, the Technical Correlating Committeeon Health Care Fac
40、ilities cannot independently change them.Accordingly, this document uses dimensions that are presentlyin common use by the building trades in the United States.1.6 Standard Adoption Requirements.1.6.1 The effective date of application of any provision of thisdocument is not determined by the Nationa
41、l Fire ProtectionAssociation. All questions related to applicability shall be di-rected to the authority having jurisdiction.1.6.2 Enforcement. This standard shall be administered andenforced by the authority having jurisdiction designated bythe governing authority. (See Annex F for a sample wording
42、 forenabling legislation.)Chapter 2 Referenced Publications2.1 General. The documents or portions thereof listed in thischapter are referenced within this standard and shall be con-sidered part of the requirements of this document.2.2 NFPA Publications. National Fire Protection Association,1 Battery
43、march Park, Quincy, MA 02169-7471.NFPA 10, Standard for Portable Fire Extinguishers, 2002 edition.NFPA 13, Standard forthe Installation of SprinklerSystems, 2002edition.NFPA 30, Flammable and Combustible Liquids Code, 2003 edi-tion.99C6 GAS AND VACUUM SYSTEMS2005 EditionNFPA 37, Standard for the Ins
44、tallation and Use of StationaryCombustion Engines and Gas Turbines, 2002 edition.NFPA 45, Standard on Fire Protection for Laboratories UsingChemicals, 2004 edition.NFPA 51, Standard for the Design and Installation of OxygenFuelGas Systems for Welding, Cutting, andAllied Processes, 2002 edition.NFPA
45、54, National Fuel Gas Code, 2002 edition.NFPA 58, Liquefied Petroleum Gas Code, 2004 edition.NFPA 70, National Electrical Code, 2005 edition.NFPA 72, National Fire Alarm Code, 2002 edition.NFPA 99B, Standard for Hypobaric Facilities, 2005 edition.NFPA 101, Life Safety Code, 2003 edition.NFPA 110, St
46、andard for Emergency and Standby Power Systems,2005 edition.NFPA 220, Standard on Types of Building Construction, 1999edition.NFPA 255, Standard Method of Test of Surface Burning Charac-teristics of Building Materials, 2000 edition.NFPA 326, Standard for the Safeguarding of Tanks and Contain-ers for
47、 Entry, Cleaning, or Repair, 1999 edition.NFPA 701, Standard Methods of Fire Tests for Flame Propagationof Textiles and Films, 2004 edition.NFPA 704, Standard System for the Identification of the Hazardsof Materials for Emergency Response, 2001 edition.NFPA 1600, Standard on Disaster/Emergency Manag
48、ement andBusiness Continuity Programs, 2004 edition.2.3 Other Publications.2.3.1 ANSI Publications. American National Standards Insti-tute, Inc., 22 West 43rd Street, 4th floor, New York, NY 10036.ANSI/ASSE Series 6000, Professional Qualifications Standardfor Medical Gas Systems Installers, Inspecto
49、rs, and Verifiers, 2001.ANSI B16.22, Wrought Copper and Copper Alloy Solder -JointPressure Fittings, 2001.ANSI B57.1 (See CGA V-1.)ANSI C84.1, Electric Power Systems and Equipment VoltageRatings, 1995.ANSI C-4 (See CGA C-4.)ANSI G-7.1 (See CGA G-7.1.)2.3.2 ASME Publications. American Society of MechanicalEngineers, Three Park Avenue, New York, NY 10016-5990.ANSI/ASME PVHO-1-1990, Safety Standard for Pressure Ves-sels for Human Occupancy.ASME Boiler and Pressure Vessel Code, 2001.2.3.3 ASTM Publications. American Society for Testing andMaterials, 100 Barr Harbor Drive, West Co
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