ASHRAE 170 ADD G-2015 Ventilation of Health Care Facilities.pdf

1、ANSI/ASHRAE/ASHE Addendum gto ANSI/ASHRAE/ASHE Standard 170-2013Ventilation ofHealth Care FacilitiesApproved by ASHRAE on September 30, 2015; by the American Society for Healthcare Engineering on September 28, 2015; andby the American National Standards Institute on October 1, 2015.This addendum was

2、 approved by a Standing Standard Project Committee (SSPC) for which the Standards Committee has estab-lished a documented program for regular publication of addenda or revisions, including procedures for timely, documented, con-sensus action on requests for change to any part of the standard. The ch

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6、f ASHRAE. Consensus is definedby the American National Standards Institute (ANSI), of which ASHRAE is a member and which has approved this Standard as an ANS, as“substantial agreement reached by directly and materially affected interest categories. This signifies the concurrence of more than a simpl

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8、s consensus through participation of its national and international members, associated societies, and public review.ASHRAE Standards are prepared by a Project Committee appointed specifically for the purpose of writing the Standard. The ProjectCommittee Chair and Vice-Chair must be members of ASHRA

9、E; while other committee members may or may not be ASHRAE members, allmust be technically qualified in the subject area of the Standard. Every effort is made to balance the concerned interests on all Project Committees. The Senior Manager of Standards of ASHRAE should be contacted fora. interpretati

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11、the public in light of available information and acceptedindustry practices. However, ASHRAE does not guarantee, certify, or assure the safety or performance of any products, components, or systemstested, installed, or operated in accordance with ASHRAEs Standards or Guidelines or that any tests con

12、ducted under its Standards or Guidelineswill be nonhazardous or free from risk.ASHRAE INDUSTRIAL ADVERTISING POLICY ON STANDARDSASHRAE Standards and Guidelines are established to assist industry and the public by offering a uniform method of testing for rating purposes, bysuggesting safe practices i

13、n designing and installing equipment, by providing proper definitions of this equipment, and by providing other informationthat may serve to guide the industry. The creation of ASHRAE Standards and Guidelines is determined by the need for them, and conformanceto them is completely voluntary.In refer

14、ring to this Standard or Guideline and in marking of equipment and in advertising, no claim shall be made, either stated or implied,that the product has been approved by ASHRAE.ASHRAE Standing Standard Project Committee 170Cognizant TC: 9.6, Healthcare FacilitiesSPLS Liaison: John F. DunlapChris P.

15、Rousseau, Chair* Michael R. KeenMichael P. Sheerin, Vice-Chair* Peter H. Langowski*Jonathan J. Flannery, Secretary* Farhad Memarzadeh*John M. Dombrowski* Richard D. Moeller*Douglas S. Erickson* Paul T. NinomuraJames (Skip) Gregory* Russell N. Olmsted*Richard D. Hermans* Heather L. Platt*Nolan Hoskin

16、g* Gordon P. Sharp* Denotes members of voting status when the document was approved for publicationASHRAE STANDARDS COMMITTEE 20152016Douglass T. Reindl, Chair Keith I. Emerson Heather L. PlattRita M. Harrold, Vice-Chair Steven J. Emmerich David RobinJoseph R. Anderson Julie M. Ferguson Peter Simmon

17、dsJames D. Aswegan Roger L. Hedrick Dennis A. StankeNiels Bidstrup Srinivas Katipamula Wayne H. Stoppelmoor, Jr.Donald M. Brundage Rick A. Larson Jack H. ZarourJohn A. Clark Lawrence C. Markel Julia A. Keen, BOD ExOWaller S. Clements Arsen K. Melikov James K. Vallort, COJohn F. Dunlap Mark P. Modera

18、James W. Earley, Jr. Cyrus H. NasseriStephanie C. Reiniche, Senior Manager of Standards ASHRAE (www.ashrae.org). For personal use only. Additional reproduction, distribution, or transmission in either print or digital form is not permitted without ASHRAEs prior written permission.ANSI/ASHRAE/ASHE Ad

19、dendum g to ANSI/ASHRAE/ASHE Standard 170-2013 1(This foreword is not part of this standard. It is merelyinformative and does not contain requirements necessaryfor conformance to the standard. It has not been pro-cessed according to the ANSI requirements for a standardand may contain material that h

20、as not been subject topublic review or a consensus process. Unresolved objec-tors on informative material are not offered the right toappeal at ASHRAE or ANSI.)FOREWORDThis addendum completes the process of coordinating operat-ing room and procedure room terminology with the 2014 FGIGuidelines. No t

21、echnical requirements of the standard arechanged. As part of this coordination process, definitions ofseveral spaces are adapted from the 2014 FGI Guidelines.Note: In this addendum, changes to the current standardare indicated in the text by underlining (for additions) andstrikethrough (for deletion

22、s) unless the instructions specifi-cally mention some other means of indicating the changes. 3. DEFINITIONS . . . classification of surgeries:procedure room (Class A surgery): provides minor sur-gical procedures performed under topical, local, orregional anesthesia without preoperative sedation.Excl

23、uded are intravenous, spinal, and epidural proce-dures, which are Class B or C surgeries.operating room (Class B surgery): provides minor ormajor surgical procedures performed in conjunction withoral, parenteral, or intravenous sedation or performedwith the patient under analgesic or dissociative dr

24、ugs.operating room (Class C surgery): provides major surgi-cal procedures that require general or regional blockanesthesia and/or support of vital bodily functions. (For more information on this method of classifying sur-geries, see ACS 2000 in Informative Appendix B.) . . . invasive procedure*: a p

25、rocedure thata. penetrates the protective surfaces of a patients body(e.g., skin, mucous membranes, cornea);b. is performed in an aseptic surgical field (i.e., a proce-dure site); c. generally requires entry into a body cavity; andd. may involve insertion of an indwelling foreign body.Informative No

26、te: Invasive procedures are performed inlocations suitable to the technical requirements of the proce-dure with consideration of infection control and anestheticrisks and goals. Accepted standards of patient care are used todetermine where an invasive procedure is performed. “Inva-sive procedure” is

27、 a broad term commonly used to describeprocedures ranging from a simple injection to a major surgi-cal procedure. For the purposes of this document, the term islimited to the above description. The intent is to differentiatethose procedures that carry a high risk of infection, either byexposure of a

28、 usually sterile body cavity to the external envi-ronment or by implantation of a foreign object into a nor-mally sterile site. Procedures performed through orificesnormally colonized with bacteria and percutaneous proce-dures that do not involve an incision deeper than skin wouldnot be included in

29、this definition. . . . operating room (OR)*: a room in the surgical suite thatmeets the requirements of a restricted area and is designatedand equipped for performing surgical or other invasive proce-dures. An aseptic field is required for all procedures per-formed in an OR. Any form of anesthesia m

30、ay beadministered in an OR if proper anesthesia gas administrationdevices are present and waste anesthesia gas disposal systemsare provided. . . . procedure room*: a room designated for the performance ofprocedures that do not meet the definition of “invasive proce-dure” and may be performed outside

31、 the restricted area of asurgical suite and may require the use of sterile instruments orsupplies. Local anesthesia and minimal and moderate seda-tion may be administered in a procedure room, as long as spe-cial ventilation or waste anesthesia gas disposal systems arenot required for anesthetic agen

32、ts used in these rooms. . . . restricted area*: a designated space in the semirestricted areaof the surgical suite that can only be accessed through asemirestricted area. The restricted access is primarilyintended to support a high level of asepsis control, not neces-sarily for security purposes. Tr

33、affic in the restricted area islimited to authorized personnel and patients. Personnel inrestricted areas are required to wear surgical attire and coverhead and facial hair. Masks are required where open sterilesupplies or scrubbed persons may be located. . . . *Informative Note: Definitions adapted

34、 from the FGIGuidelines (see FGI 2014 in Informative Appendix B).6.1 Utilities6.1.1 Ventilation Upon Loss of Electrical Power. Thespace ventilation and pressure relationship requirements ofTable 7.1 be maintained for the following spaces, even in theevent of loss of normal electrical power:a. AII ro

35、omsb. PE roomsc. Operating rooms (Class B and C surgery), including deliv-ery rooms (Caesarean)(For further information, see NFPA 2012 in InformativeAppendix B.) Addendum g to Standard 170-2013Revise Section 3 as shown. The remainder of Section 3 isunchanged.Revise Section 6.1.1 as shown. ASHRAE (ww

36、w.ashrae.org). For personal use only. Additional reproduction, distribution, or transmission in either print or digital form is not permitted without ASHRAEs prior written permission.2 ANSI/ASHRAE/ASHE Addendum g to ANSI/ASHRAE/ASHE Standard 170-20136.5.3 Radiant Heating Systems. If radiant heating

37、is pro-vided for an AII room, a protective environment room, awound intensive-care unit (burn unit), an operating room or aprocedure room (for any class of surgery), either flat andsmooth radiant ceiling or wall panels with exposed cleanablesurfaces or radiant floor heating shall be used. Gravity-ty

38、peheating or cooling units, such as radiators or convectors, shallnot be used in operating rooms and other special-care areas.6.7.2 Air Distribution Devices. All air distribution devicesshall meet the following requirements:a. Surfaces of air distribution devices shall be suitable forcleaning. Suppl

39、y air outlets in accordance with Table6.7.2 shall be used.b. The supply diffusers in operating rooms (Classes B and Csurgeries) shall be designed and installed to allow forinternal cleaning.c. Psychiatric, seclusion, and holding-patient rooms shall bedesigned with security diffusers, grilles, and re

40、gisters. 7.1 General Requirements. The following general require-ments shall apply for space ventilation:d. In AII rooms, protective environment rooms, woundintensive-care units (burn units), and operating and proce-dure rooms (for all classes of surgery), heating with sup-ply air or radiant panels

41、that meet the requirements ofSection 6.5.3 shall be provided. 7.4.1 Operating Rooms (Class B and C), Operating/Sur-gical Cystoscopic Rooms, and Caesarean Delivery Rooms.These rooms shall be maintained at a positive pressure withrespect to all adjoining spaces at all times. A pressure differ-ential s

42、hall be maintained at a value of at least +0.01 in. wc(2.5 Pa). Each room shall have individual temperature con-trol. These rooms shall be provided with primary supply dif-fusers that are designed as follows:7.4.3 Imaging Procedure Rooms. If invasive proceduresoccur in this type of room, ventilation

43、 shall be provided inaccordance with the ventilation requirements for procedurerooms (Class A surgery). If anesthetic gases are administered,ventilation shall be provided in accordance with the ventila-tion requirements for operating rooms (Class B or C surgery).8.6 Duct Cleanliness. The duct supply

44、 system shall meet thefollowing requirements for cleanliness:b. The supply diffusers in operating rooms (Class B and Csurgery) shall be opened and cleaned before the space isused. Revise Table 6.4 as shown. The remainder of the table is unchanged.TABLE 6.4 Minimum Filter EfficienciesSpace Designatio

45、n (According to Function)Filter Bank No. 1(MERV)aFilter Bank No. 2(MERV)aOperating rooms (Class B and C surgery); inpatient and ambulatory diagnostic and therapeutic radiology; inpatient delivery and recovery spaces7 14Laboratories; Procedure rooms (Class A surgery), and associated semirestricted sp

46、aces13bNRRevise Section 6.5.3 as shown.Revise Section 6.7.2 as shown.Revise Table 6.7.2 as shown below. The remainder of the table is unchanged.TABLE 6.7.2 Supply Air Outlets Space Designation (According to Function) Supply Air Outlet ClassificationaOperating roomsb, procedure rooms (all class A, B,

47、 and C surgeriesb)Primary supply diffusers Group E, nonaspirating additional Supply Diffusers, Group ERevise Section 7.1(d) as shown. The remainder of Section 7.1 is unchanged.Revise Section 7.4.1 as shown. The remainder of Section 7.4.1 is unchanged.Revise Section 7.4.3 as shown.Revise Section 8.6(

48、b) as shown. The remainder of Section 8.6 is unchanged. ASHRAE (www.ashrae.org). For personal use only. Additional reproduction, distribution, or transmission in either print or digital form is not permitted without ASHRAEs prior written permission.ANSI/ASHRAE/ASHE Addendum g to ANSI/ASHRAE/ASHE Sta

49、ndard 170-2013 3Revise Table 7.1 as shown. The remainder of the table isunchanged.TABLE 7.1DesignParameters Function of SpacePressureRelationship toAdjacent Areas(n)Minimum Outdoor achMinimum Total achAll Room Air ExhaustedDirectly toOutdoors(j)Air RecirculatedbyMeans ofRoomUnits(a)Design Relative Humidity(k),%Design Temperature(l),F/CSURGERY AND CRITICALCAREOperating room(ClassBand C)(m),(n),(o) Positive420NRNo20606875/2024. . .Procedure room(Class A surgery)(o),(d)Positive315NRNo20607075/2124. . . ASHRAE (www.ashrae.org). For personal