ANSI B11 STD B11 TR5-2006 Sound Level Measurement Guidelines.pdf

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1、 B11.TR5 2006 ANSI Technical Report for Machines Sound Level Measurement Guidelines A guide for measuring, evaluating, documenting and reporting sound levels emitted by machinery Registered: NOVEMBER 27, 2006 by the American National Standards Institute, Inc. Secretariat and Standards Developing Org

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20、1024206, USA Copyright 2006 by AMT- The Association For Manufacturing Technology All rights reserved. Printed in the United States of America No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publish

21、er. Sound Level Measurement Guidelines T a b l e o f C o n t e n t s P a g e FOREWORD i 1 SCOPE.3 2 REFERENCES.3 3 DEFINITIONS.3 4 MEASUREMENT .5 4.1 INSTRUMENTATION 5 4.2 CALIBRATION. 5 4.3 SOUND LEVEL METERS . 5 4.4 MICROPHONES . 6 4.5 ULTRASOUND. 6 4.6 TESTING ENVIRONMENT. 6 4.7 AMBIENT SOUND PRE

22、SSURE LEVELS. 7 4.8 MEASURING SOUND PRESSURE LEVELS 8 4.9 SOUND PARAMETERS 8 5 EVALUATION9 5.1 MACHINERY DATA . 9 5.2 SITE APPLICATION 10 6 DOCUMENTATION .11 6.1 MACHINE UNDER TEST . 12 6.2 TEST CONDITIONS 12 6.3 ACOUSTIC ENVIRONMENT 12 6.4 INSTRUMENTATION 12 6.5 LOCATION OF SPECIFIED POSITIONS 12 6

23、.6 SOUND DATA 12 7 REPORTING13 7.1 DATA FORM 13 7.2 REPORTED DATA 13 ANNEX A - FIGURES.14 ANNEX B .14 ANNEX C 20 Foreword This ANSI Technical Report was developed to provide useful and practical guidance to the supplier and user of machines to accurately assess the sound level(s) generated the machi

24、nes or machine production systems. Publication of this ANSI Technical Report has been approved by the Accredited Standards Developer AMT- The Association For Manufacturing Technology. This document is registered as a Technical Report according to the Procedures for the Registration of ANSI Technical

25、 Reports. This document is not an American National Standard and the material contained herein is informative, not normative in nature. Excessive sound exposures can, in some cases, result in a loss of hearing. These findings resulted in the promulgation of federal regulations which specifically est

26、ablished occupational and environmental sound level exposure limits. Therefore, reducing the amount of sound generated by machine tools has become another important design parameter for the machine supplier. To achieve that objective, all of the materially affected and interested parties (machine bu

27、ilders, component manufacturers, end-users, consultants etc.) involved must communicate using the same terms and procedures. To that end, in 1969 the National Machine Tool Builders Association (now, AMT-The Association For Manufacturing Technology) established a committee for the task of preparing a

28、n industry standard which would delineate suggested measuring techniques and procedures for determining sound emanating from machine tools. In 1970, the first edition of this document was published; it recommended a uniform method for measurement of sound created by machine tools. The technique was

29、very simple and in the ensuing years, it became widely accepted. Machine tool builders became familiar with the system for measuring the sound created by the machines and purchasers of machines began to reference the technique when they issued purchasing specifications for machinery. With use of the

30、 standard over a few years, modification and “fine tuning” of the measurement technique became desirable. Therefore, the ad hoc committee was re-established in 1973 to update the document. The second edition of the industry standard on measurement techniques was published in 1976. Since that time, t

31、he standard has enjoyed wide acceptance and use in general industry by suppliers and many end users, particularly in the specifications of equipment and machines. In early 2002, the ANSI B11 Accredited Standards Committee began discussing the potential need to revisit this (at that time, nearly 25+

32、year old) industry standard, and agreed to: 1) update and revise the document, and 2) elevate the status and developmental rigor of the document by incorporating it into the B11 series of machine safety documents as an ANSI Technical Report. The ANSI B11.TR5 Subcommittee first met in June 2004, and

33、by April 2005 essentially completed this Technical Report. Since the purpose of this document is to explain methods for measuring and recording machine sound levels that are most compatible with actual conditions encountered in industry, references to newer techniques in sound measurement and analys

34、is are included. Therefore, a discussion of time-weighted average sound levels has been added (Annex B) to assist the reader in understanding the sound dosage concept embodied in the Occupational Safety and Health Administration (OSHA) regulations. Note that at this time a disagreement exists betwee

35、n OSHA and the Environmental Protection Agency (EPA) as to the basis for computing sound dosage. However, this document takes no position regarding the controversy; Annex B has been incorporated for reference purposes only. This Technical Report is divided into four basic sections: Measurement (clau

36、se 4), Evaluation (clause 5), Documentation (clause 6), and Reporting (clause 7), and includes Annexes with reference information including a sample recording/documentation form, schematic measurement envelope, and 3/5 dB doubling allowable sound exposure, as well as an explanation of equivalent sou

37、nd pressure levels and estimating average levels. i ii Since certain aspects of the noise problem lack definition, this document should be used as a guide, capable of being modifed to suit the particular test situation. This document will be amended to incorporate improved techniques and procedures

38、as they are developed. Suggestions for improvement of this technical report are welcome and should be sent to: AMT, 7901 Westpark Drive, McLean, VA 22102-4206, Attention: Safety Director. ANSI B11 Accredited Standards Committee: John W. Russell, PE, CSP Chairman Gary D. Kopps, Vice-Chairman David A.

39、 Felinski, Secretary Organizations Represented Name of Representative Delegate Alternate Aerospace Industries Association of America Willard J. Wood, ARM Lance E. Chandler Aluminum Extruders Council Melvin Mitchell Doug Hart American Society of Safety Engineers Bruce W. Main, PE George V. Karosas As

40、sociation For Manufacturing Technology Russell A. Bensman Daniel P. Saroka Alan Metelsky Automotive Industry Action Group Ronald Tillinger Kent Lenzen The Boeing Company Donald R. Nelson Robert J. Eaker, PE, CSP Can Manufacturers Institute Geoff Cullen Jenny Day Deere and Company Gary D. Kopps Ellen

41、 Blanshan General Motors Corporation Michael Taubitz Dallas Gatlin Metal Building Manufacturers Association Charles M. Stockinger Charles E. Praeger Metal Powder Industries Federation Dennis R. Cloutier, CSP Teresa F. Stillman National Institute for Occupational Safety & Health Richard S. Current, P

42、E James R. Harris, PE Occupational Safety & Health Administration Kenneth Stevanus Packaging Machinery Manufacturers Institute Charles F. Hayes Maria Ferrante Pilz Automation Safety, LP Roberta Nelson Shea Lee Burk Property Casualty Insurers John W. Russell, PE, CSP Keith Lessner Precision Metalform

43、ing Association William E. Gaskin Christen A. Carmigiano Presence Sensing Device Manufacturers Association James V. Kirton Michael S. Carlson Rockwell Automation Steve Dukich Jay Tamblingson Robotics Industries Association Jeff Fryman Roberta Nelson Shea Scientific Technologies Incorporated Frank We

44、bster Christopher Soranno Sheet Metal & Air Conditioning Contractors National Assn. Michael McCullion Roy Brown Tooling and Manufacturing Association Daniel Kiraly Toyota Motor Manufacturing North America Barry Boggs Thomas Huff Walter Grinders Timothy Hogan Simon Bramhall The B11 Subcommittee on So

45、und Level Measurement Guidelines which developed this technical report had the following members: Dennis Cloutier, CSP Cloutier Consulting Chairman Mark Arriens, CIH Toyota Lee Burk Pilz Dave Cmar Phase To Tod Craft National Machinery Jack Hartwig, CIH DaimlerChrysler Ed Stevenson, CIH, CSP Liberty

46、Mutual David Felinski AMT Secretary ANSI Technical Report B11.TR5 - 2006 3 Sound Level Measurement Guidelines A guide for measuring, evaluating, documenting and reporting sound levels emitted by machinery 1 Scope This Technical Report specifies methods for measuring, evaluating and documenting sound

47、 pressure levels emitted by a machine or machine production system(s) during normal operation and when running at idle. This technical report provides guidance for measuring and recording machine sound pressure levels that are the most compatible with the actual conditions encountered in industry, a

48、nd allows the user to select equipment using buy-quiet purchase specifications or to estimate the effect particular machinery will have on existing sound pressure levels once it is installed in the users facility. Sound pressure levels emitted by machines or machine production systems is frequently

49、referred to as “noise.” This Technical Report considers the terms “Noise” and “Sound” as synonymous. 2 References The following references were either used as a basis for developing this document, or are good reference sources that may be consulted for additional information on a particular topic. ANSI S1.4- 1983(R2001) Specification for Sound Level Meters ANSI S1.43- 1997 (R2002) Specification for Integrating Averaging Sound Level Meters ANSI S1.13- 1995 (R1999) Measurement of Sound Pressure Levels in Air ANSI S3.4- 1980 (R2003) Procedure for