1、The companies listed above have 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 c
2、onformance with the requirements of the standard. These companies have 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. A
3、coustical 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 followi
4、ng companies. 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 inc
5、ludes metal and wood ceilings, i-ceilings and SoundScapes Acoustical Canopies. The Armstrong Ceiling Recycling Program, the only one of its kind, prevents landfill disposal by recycling old ceiling tiles. Trane 3600 Pammel Creek Road LaCrosse, WI 54601 Trane, a business of Ingersoll Rand, improves
6、the performance of homes and buildings around the world. Trane solutions optimize indoor environments with a broad portfolio of energy efficient heating, ventilating and air conditioning systems, building and contracting services, parts support and advanced controls for homes and commercial building
7、s. For more information, visit http:/ Acoustical Society of AmericaANSI/ASA S12.60-2009/Part 2 AMERICAN NATIONAL STANDARDAcoustical Performance Criteria, Design Requirements, and Guidelines for Schools, Part 2: Relocatable Classroom Factors Accredited Standards Committee S12, NoiseStandards Secretar
8、iat Acoustical Society of America 35 Pinelawn Road, Suite 114 E Melville, NY 11747-3177ANSI/ASA S12.60-2009/Part 2 Reaffirmed by ANSI September 11, 2014 The American National Standards Institute, Inc. (ANSI) is the national coordinator of voluntary standards development and the clearinghouse in the
9、U.S.A. for information on national and international standards. The Acoustical Society of America (ASA) is an organization of scientists and 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 NAT
10、IONAL STANDARD Acoustical Performance Criteria, Design Requirements, and Guidelines for Schools, Part 2: Relocatable Classroom Factors Secretariat: Acoustical Society of America Approved September 2, 2009 by: American National Standards Institute, Inc. Abstract This document is Part 2 of the ANSI/AS
11、A S12.60 series. This part is applicable to relocatable classrooms and other relocatable modular core learning spaces of small to moderate size. This standard includes siting requirements, acoustical performance criteria, and design requirements for relocatable classrooms. Annex A (informative) prov
12、ides commentary information on this standard, and Annex B (normative) provides procedures for determining compliance with the background sound requirements. This standard seeks to provide design flexibility without compromising the goal of obtaining adequate speech intelligibility for all students a
13、nd teachers in classrooms and learning spaces within the scope of this standard. AMERICAN NATIONAL STANDARDS ON ACOUSTICS The Acoustical Society of America (ASA) provides the Secretariat for Accredited Standards Committees S1 on Acoustics, S2 on Mechanical Vibration and Shock, S3 on Bioacoustics, S3
14、/SC 1 on Animal Bioacoustics, and S12 on Noise. These committees have wide representation from the technical community (manufacturers, consumers, trade associations, organizations with a general interest, and government representatives). The standards are published by the Acoustical Society of Ameri
15、ca as American National Standards after approval by their respective Standards Committees and the American National Standards Institute (ANSI). These standards are developed and published as a public service to provide standards useful to the public, industry, and consumers, and to Federal, State, a
16、nd local governments. Each of the Accredited Standards Committees (operating in accordance with procedures approved by ANSI) is responsible for developing, voting upon, and maintaining or revising its own Standards. The ASA Standards Secretariat administers Committee organization and activity and pr
17、ovides liaison between the Accredited Standards Committees and ANSI. After the Standards have been produced and adopted by the Accredited Standards Committees, and approved as American National Standards by ANSI, the ASA Standards Secretariat arranges for their publication and distribution. An Ameri
18、can National Standard implies a consensus of those substantially concerned with its scope and provisions. Consensus is established when, in the judgment of the ANSI Board of Standards Review, substantial agreement has been reached by directly and materially affected interests. Substantial agreement
19、means much more than a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered and that a concerted effort be made towards their resolution. The use of an American National Standard is completely voluntary. Their existence does not in any respec
20、t preclude anyone, whether he or she has approved the Standards or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the Standards. NOTICE: This American National Standard may be revised or withdrawn at any time. The procedures of the Ameri
21、can National Standards Institute require that action be taken periodically to reaffirm, revise, or withdraw this Standard. Acoustical Society 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
22、 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 commercial 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 permi
23、ssion, address a request to the Standards Secretariat of the Acoustical Society of America. 2009 Acoustical Society of America All rights reserved 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 acousti
24、cal performance and design. 3 4 Applications 5 5 Acoustical performance criteria and noise isolation design requirements and guidelines. 5 5.1 Introduction 5 5.2 Performance criteria for background noise . 6 5.3 Performance criteria for reverberation times . 8 5.4 Noise isolation design requirements
25、 8 5.5 Compliance testing 10 Annex A (Informative) Commentary 11 Annex B (Normative) Verifying Compliance with the Background Sound Level Requirements by Measurement. 15 B.1 Verifying compliance with the interior source background noise requirement 15 B.2 Verifying compliance with the exterior sourc
26、e background noise requirement . 16 B.3 Verifying inside-to-inside sound isolation 17 Tables Table 1 A-weighted sound levels of background noise 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
27、 4 Minimum STC ratings required for single or composite interior wall and floor-ceiling assemblies that separate an enclosed core learning space from an adjacent space . 9 Commentary-Table A.1 Minimum STC ratings recommended for single or composite wall, floor-ceiling and roof-ceiling assemblies sep
28、arating an ancillary space from an adjacent space 13 2009 Acoustical Society of America All rights reserved ii Foreword This Foreword is for 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, De
29、sign Requirements, and Guidelines for Schools, Part 2: Relocatable Classroom Factors. This standard comprises a part of a group of definitions, standards, and specifications for use in noise. It was developed and approved by Accredited Standards Committee S12, Noise, under its approved operating pro
30、cedures. Those procedures have been accredited by the American National Standards Institute (ANSI). The Scope of Accredited Standards Committee S12 is as follows: Standards, specifications, and terminology in the field of acoustical noise pertaining to methods of measurement, evaluation, and control
31、, including biological safety, tolerance, and comfort, and physical acoustics as related to environmental and occupational noise. At the time 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) Ame
32、rican National Standard Acoustical Performance Criteria, Design Requirements, and Guidelines for Schools. ANSI/ASA S12.60-2009/Part 2 American National Standard Acoustical Performance Criteria, Design Requirements, and Guidelines for Schools, Part 2: Relocatable Classroom Factors. However, at the ti
33、me 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 underway on a new part, ANSI/ASA S12.60/Part 3, American National Standard Acoustical Performance Criteria, Design Requirements, and Guidelines for Schools, Part 3: I
34、nformation Technology Equipment in Classrooms. This standard is not comparable to any existing ISO Standard. At the time this standard was submitted 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, Se
35、cretary Acoustical Society of America.R.D. Hellweg D. Lubman (Alt.) Aearo Company.E.H. Berger Air-Conditioning and Refrigeration Institute . 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 Ameri
36、ca All rights reserved iiiAmerican Academy of Audiology Y. Szymko-Bennett . D. Ostergren (Alt.) American Academy of Otolaryngology R.A. Dobie L.A. Michael (Alt.) American Industrial Hygiene Association. D. Driscoll .S.N. Hacker (Alt.) American Society of Heating, Refrigeration and Air Conditioning E
37、ngineers (ASHRAE) L. Ronsse D. Tucker (Alt.) American Speech-Hearing-Language Association .L.A. Wilber . V. Gladstone (Alt.) Caterpillar, Inc. .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.
38、 Hager (Alt.) Emerson Electric Copeland Corporation A.T. Herfat G. Williamson (Alt.) ETS Lindgren Acoustic Systems .D. Winker M. Black (Alt.) 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
39、 essential in classrooms and other learning spaces in which speech communication is an important part of the learning process. Excessive background noise or reverberation in such spaces interferes with speech communication and thus presents an acoustical barrier to learning. With good classroom acou
40、stics, learning is easier, deeper, more sustained, and less fatiguing. Teaching should be more effective and less stressful with good acoustical characteristics in a classroom. There can be more verbal interaction and less repetition between teacher and students when spoken words are clearly underst
41、ood. Although all those in a classroom, including teachers and adult learners, will benefit, special beneficiaries are young children and persons with hearing, language, speech, attention deficit, or learning disabilities. Conformance to this standard will improve the quality of education by elimina
42、ting acoustical barriers for all students and teachers, including those with communication disabilities. Good design and attention to detail throughout the construction or renovation process can ensure conformance to the requirements of this standard. AMERICAN NATIONAL STANDARD ANSI/ASA S12.60-2009/
43、Part 2 2009 Acoustical Society of America All rights reserved 1American National Standard Acoustical Performance Criteria, Design Requirements, 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 relocata
44、ble classrooms and other relocatable modular core learning spaces of small to moderate size. This standard includes siting requirements, acoustical performance criteria, and design requirements for relocatable classrooms. Annex A (informative) provides commentary information on this standard, and An
45、nex B (normative) provides procedures for determining compliance with the background sound 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
46、 the scope of this standard. 1.1.2 Acoustical performance criteria are specified in this standard by limits on maximum one-hour A-weighted and 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 p
47、art, by specifying the minimum outdoor-to-indoor level reduction for noise that intrudes into the classroom or learning space from sources outside of the school building envelope, and noise isolation for school building elements for noise that originates within the school building and intrudes into
48、the classroom through classroom walls and partitions, floor-ceiling assemblies, and ventilation systems. 1.1.4 This standard does not apply to noise generated within a classroom by its occupants. Occupant-generated noise sources include voices and the sounds of classroom activities such as the movin
49、g of chairs. Furthermore, this standard does not apply to the noise from portable or permanent built-in equipment used during the course of instruction, 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 background sound requirements (normative). 1.2 Purpos
