1、The company listed above has provided generous financial support that allows this standard to be distributed without charge to the end user. ASAs recognition of this support does not imply endorsement of any product or service, nor does it imply that any product or service provided will achieve conf
2、ormance with the requirements of the standard. This company has no control over the content of the standard or its status as an American National Standard. Participation in the development of this and other American National Standards is open to all directly and materially affected parties. Acoustic
3、al Society of America, 2009. All rights reserved. ANSI/ASA S12.60-2009/PART 2 American National Standard Acoustical Performance Criteria, Design Requirements, and Guidelines for Schools, Part 2: Relocatable Classroom Factors is made available to the end user as a public service by the following comp
4、any. Armstrong Ceiling Systems 2500 Columbia Ave. (17603) P.O. Box 3001 Lancaster, PA 17604 (717) 397-0611 Armstrong is a worldwide leader in the manufacture and marketing of acoustical ceilings and suspension systems for commercial applications. Their commercial product portfolio also includes met
5、al and wood ceilings, i-ceilings and SoundScapes Acoustical Canopies. The Armstrong Ceiling Recycli ng Program, the only one of its kind, prevents landfill disposal by recycling old ceiling tiles. Acoustical Society of AmericaANSI/ASA S12.60-2009/Part 2 AMERICAN NATIONAL STANDARDAcoustical Performan
6、ce Criteria, Design Requirements, and Guidelines for Schools, Part 2: Relocatable Classroom Factors Accredited Standards Committee S12, NoiseStandards Secretariat Acoustical Society of America 35 Pinelawn Road, Suite 114 E Melville, NY 11747-3177ANSI/ASA S12.60-2009/Part 2 Reaffirmed by ANSI Septemb
7、er 11, 2014 The American National Standards Institute, Inc. (ANSI) is the national coordinator of voluntary standards development and the clearinghouse in the U.S.A. for information on national and international standards. The Acoustical Society of America (ASA) is an organization of scientists and
8、engineers formed in 1929 to increase and diffuse the knowledge of acoustics and to promote its practical applications. ANSI/ASA S12.60-2009/Part 2 AMERICAN NATIONAL STANDARD Acoustical Performance Criteria, Design Requirements, and Guidelines for Schools, Part 2: Relocatable Classroom Factors Secret
9、ariat: Acoustical Society of America Approved September 2, 2009 by: American National Standards Institute, Inc. Abstract This document is Part 2 of the ANSI/ASA S12.60 series. This part is applicable to relocatable classrooms and other relocatable modular core learning spaces of small to moderate si
10、ze. This standard includes siting requirements, acoustical performance criteria, and design requirements for relocatable classrooms. Annex A (informative) provides commentary information on this standard, and Annex B (normative) provides procedures for determining compliance with the background soun
11、d requirements. This standard seeks to provide design flexibility without compromising the goal of obtaining adequate speech intelligibility for all students and teachers in classrooms and learning spaces within the scope of this standard. AMERICAN NATIONAL STANDARDS ON ACOUSTICS The Acoustical Soci
12、ety of America (ASA) provides the Secretariat for Accredited Standards Committees S1 on Acoustics, S2 on Mechanical Vibration and Shock, S3 on Bioacoustics, S3/SC 1 on Animal Bioacoustics, and S12 on Noise. These committees have wide representation from the technical community (manufacturers, consum
13、ers, trade associations, organizations with a general interest, and government representatives). The standards are published by the Acoustical Society of America as American National Standards after approval by their respective Standards Committees and the American National Standards Institute (ANSI
14、). These standards are developed and published as a public service to provide standards useful to the public, industry, and consumers, and to Federal, State, and local governments. Each of the Accredited Standards Committees (operating in accordance with procedures approved by ANSI) is responsible f
15、or developing, voting upon, and maintaining or revising its own Standards. The ASA Standards Secretariat administers Committee organization and activity and provides liaison between the Accredited Standards Committees and ANSI. After the Standards have been produced and adopted by the Accredited Sta
16、ndards Committees, and approved as American National Standards by ANSI, the ASA Standards Secretariat arranges for their publication and distribution. An American National Standard implies a consensus of those substantially concerned with its scope and provisions. Consensus is established when, in t
17、he judgment of the ANSI Board of Standards Review, substantial agreement has been reached by directly and materially affected interests. Substantial agreement means much more than a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered and tha
18、t a concerted effort be made towards their resolution. The use of an American National Standard is completely voluntary. Their existence does not in any respect preclude anyone, whether he or she has approved the Standards or not, from manufacturing, marketing, purchasing, or using products, process
19、es, or procedures not conforming to the Standards. NOTICE: This American National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken periodically to reaffirm, revise, or withdraw this Standard. Acoustical Society
20、 of America ASA Secretariat 35 Pinelawn Road, Suite 114E Melville, New York 11747-3177 Telephone: 1 (631) 390-0215 Fax: 1 (631) 390-0217 E-mail: asastdsaip.org 2009 by Acoustical Society of America. This standard may not be reproduced in whole or in part in any form for sale, promotion, or any comme
21、rcial purpose, or any purpose not falling within the provisions of the U.S. Copyright Act of 1976, without prior written permission of the publisher. For permission, address a request to the Standards Secretariat of the Acoustical Society of America. 2009 Acoustical Society of America All rights res
22、erved iContents 1 Scope and purpose 1 1.1 Scope. 1 1.2 Purpose . 1 2 Normative references. 2 3 Definitions. 2 3.1 General terms 2 3.2 Terms relating to acoustical performance and design. 3 4 Applications 5 5 Acoustical performance criteria and noise isolation design requirements and guidelines. 5 5.
23、1 Introduction 5 5.2 Performance criteria for background noise . 6 5.3 Performance criteria for reverberation times . 8 5.4 Noise isolation design requirements 8 5.5 Compliance testing 10 Annex A (Informative) Commentary 11 Annex B (Normative) Verifying Compliance with the Background Sound Level Req
24、uirements by Measurement. 15 B.1 Verifying compliance with the interior source background noise requirement 15 B.2 Verifying compliance with the exterior source background noise requirement . 16 B.3 Verifying inside-to-inside sound isolation 17 Tables Table 1 A-weighted sound levels of background no
25、ise and reverberation times in unoccupied, furnished learning spaces 6 Table 2 HVAC system duty cycles 7 Table 3 OINIC rating for relocatable classroom 9 Table 4 Minimum STC ratings required for single or composite interior wall and floor-ceiling assemblies that separate an enclosed core learning sp
26、ace from an adjacent space . 9 Commentary-Table A.1 Minimum STC ratings recommended for single or composite wall, floor-ceiling and roof-ceiling assemblies separating an ancillary space from an adjacent space 13 2009 Acoustical Society of America All rights reserved ii Foreword This Foreword is for
27、information only and is not a part of the American National Standard ANSI/ASA S12.60-2009/Part 2 American National Standard Acoustical Performance Criteria, Design Requirements, and Guidelines for Schools, Part 2: Relocatable Classroom Factors. This standard comprises a part of a group of definition
28、s, standards, and specifications for use in noise. It was developed and approved by Accredited Standards Committee S12, Noise, under its approved operating procedures. Those procedures have been accredited by the American National Standards Institute (ANSI). The Scope of Accredited Standards Committ
29、ee S12 is as follows: Standards, specifications, and terminology in the field of acoustical noise pertaining to methods of measurement, evaluation, and control, including biological safety, tolerance, and comfort, and physical acoustics as related to environmental and occupational noise. At the time
30、 of publication of this document, the ANSI/ASA S12.60 series of standards includes the following American National Standards: ANSI/ASA S12.60-2002 (R 2009) American National Standard Acoustical Performance Criteria, Design Requirements, and Guidelines for Schools. ANSI/ASA S12.60-2009/Part 2 America
31、n National Standard Acoustical Performance Criteria, Design Requirements, and Guidelines for Schools, Part 2: Relocatable Classroom Factors. However, at the time of this publication, ANSI/ASA S12.60-2002 (R 2009) is under revision and is expected to be re-designated as “Part 1.“ Work is also underwa
32、y on a new part, ANSI/ASA S12.60/Part 3, American National Standard Acoustical Performance Criteria, Design Requirements, and Guidelines for Schools, Part 3: Information Technology Equipment in Classrooms. This standard is not comparable to any existing ISO Standard. At the time this standard was su
33、bmitted to Accredited Standards Committee S12, Noise, for approval, the membership was as follows: R.D. Hellweg, Chair W.J. Murphy, Vice-Chair S.B. Blaeser, Secretary Acoustical Society of America.R.D. Hellweg D. Lubman (Alt.) Aearo Company.E.H. Berger Air-Conditioning and Refrigeration Institute .
34、S. Lind . D. Brown (Alt.) Air Movement and Control Association, Inc. J.A. Brooks M. Stevens (Alt.) Alcoa Inc. . W.D. Gallagher 2009 Acoustical Society of America All rights reserved iiiAmerican Academy of Audiology Y. Szymko-Bennett . D. Ostergren (Alt.) American Academy of Otolaryngology R.A. Dobie
35、 L.A. Michael (Alt.) American Industrial Hygiene Association. D. Driscoll .S.N. Hacker (Alt.) American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE) L. Ronsse D. Tucker (Alt.) American Speech-Hearing-Language Association .L.A. Wilber . V. Gladstone (Alt.) Caterpillar, Inc
36、. .K.G. Meitl Compressed Air and Gas InstituteR.C. Johnson .D.R. Bookshar (Alt.) Council for Accreditation in Occupational Hearing Conservation J.A. Mann .L.D. Hager (Alt.) Emerson Electric Copeland Corporation A.T. Herfat G. Williamson (Alt.) ETS Lindgren Acoustic Systems .D. Winker M. Black (Alt.)
37、 G.R.A.S. Sound FAX: 631-390-0217; E-mail: asastdsaip.org. 2009 Acoustical Society of America All rights reserved vi Introduction Good acoustical qualities are essential in classrooms and other learning spaces in which speech communication is an important part of the learning process. Excessive back
38、ground noise or reverberation in such spaces interferes with speech communication and thus presents an acoustical barrier to learning. With good classroom acoustics, learning is easier, deeper, more sustained, and less fatiguing. Teaching should be more effective and less stressful with good acousti
39、cal characteristics in a classroom. There can be more verbal interaction and less repetition between teacher and students when spoken words are clearly understood. Although all those in a classroom, including teachers and adult learners, will benefit, special beneficiaries are young children and per
40、sons with hearing, language, speech, attention deficit, or learning disabilities. Conformance to this standard will improve the quality of education by eliminating acoustical barriers for all students and teachers, including those with communication disabilities. Good design and attention to detail
41、throughout the construction or renovation process can ensure conformance to the requirements of this standard. AMERICAN NATIONAL STANDARD ANSI/ASA S12.60-2009/Part 2 2009 Acoustical Society of America All rights reserved 1American National Standard Acoustical Performance Criteria, Design Requirement
42、s, and Guidelines for Schools, Part 2: Relocatable Classroom Factors 1 Scope and purpose 1.1 Scope 1.1.1 This part of ANSI/ASA S12.60 is applicable to relocatable classrooms and other relocatable modular core learning spaces of small to moderate size. This standard includes siting requirements, acou
43、stical performance criteria, and design requirements for relocatable classrooms. Annex A (informative) provides commentary information on this standard, and Annex B (normative) provides procedures for determining compliance with the background sound requirements. This standard seeks to provide desig
44、n flexibility without compromising the goal of obtaining adequate speech intelligibility for all students and teachers in classrooms and learning spaces within the scope of this standard. 1.1.2 Acoustical performance criteria are specified in this standard by limits on maximum one-hour A-weighted an
45、d C-weighted background noise levels and limits on maximum reverberation times. 1.1.3 The control of background noise levels in this standard is achieved, in part, by specifying the minimum outdoor-to-indoor level reduction for noise that intrudes into the classroom or learning space from sources ou
46、tside of the school building envelope, and noise isolation for school building elements for noise that originates within the school building and intrudes into the classroom through classroom walls and partitions, floor-ceiling assemblies, and ventilation systems. 1.1.4 This standard does not apply t
47、o noise generated within a classroom by its occupants. Occupant-generated noise sources include voices and the sounds of classroom activities such as the moving of chairs. Furthermore, this standard does not apply to the noise from portable or permanent built-in equipment used during the course of i
48、nstruction, such as audiovisual equipment and computers. 1.1.5 The following annexes are provided to support this standard. Annex A: Commentary: Additional information, discussion, and explanation of various provisions of the standard (informative). Annex B: Determining compliance with the backgroun
49、d sound requirements (normative). 1.2 Purpose This standard, in conjunction with the information provided in the commentary and annexes, is intended to help school planners and designers provide the acoustical qualities necessary for good speech communication between students and teachers in classrooms and other learning spaces without the use of electronic amplification systems. This standard is also intended to provide a minimum set of requirements that can be adopted by reference to this standard and enforced by an auth
