Volume 6, Number 4, December, 1998 - Noise News International

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Standards News Avril Brenig, Standards Manager ASA Standards Secretariat, Acoustical Society of America, 120 Wall Street, 32nd Floor, New York, New York 10005, USA. Telephone: + I 2122480373; FAX:+ I 2122480146 George S.K. Wong Acoustical Standards Group, Institute for National Measurement Standards, National Research Council , Ottawa, Ontario K IA OR6, Canada. Telephone: + I 6139936159; FAX: + 1 613952 1394 American National Standards (ANSI Standards ) developed by Accredited Standards Committees Sl, S2, S3, lind SI2 in the areas of acoustics, mechanical shock and vibration, bioacoustics, and noise, respectively, are published by the Acoustical Society ofAmerica (ASA) through the American Institute ofPhysics (AlP). In addition to these standards, a Catalog ofAcoustical Standards - ASA Catalog 17-1998 is available. For a copy, contact Avril Brenig. Comments on all materials in Standards News are welcome . Standards News from the United States (Partially derived from ANSIReporter, and ANSIStandards Action, with appreciation) Presentation to the ASA Standards Director and Chair, ASACOS During the ASACOS meeting at State College, PA, a presentation was made to Dr. T. Embleton, ASA Standards Director and Chair, ASACOS, for his outstanding contributions to the acoustical community in heading the Standards Program of the Acoustical Society, from 1993 to 1997. ASACOS applauded the achievements of Dr. Embleton during his term of office and wished him well in the future. Dr. Daniel Johnson, then Vice-Chair of ASACOS, became the Chair of ASACOS and Standards Director for the Acoustical Society; Dr. Paul Schomer is the Vice-Chair of ASACOS . Newly published American National Standards S12-NOISE ANSI S12.9-1996--Part 4 Americ an National Standard Quantities and Procedures for Description and Measurement ofEnvironmental Sound-Part 4: Noise Assessment and Prediction of Long-Term Community Response. • This is an edited version ofthe Standards News Department published in the Journal of the Acoustical Society ofAmerica. Reprinted by permission. The full text appears in the Journal ofthe Acoustical Society ofAmerica, 103(3), 1237-1240,1998 March.-Ed. ReaHirmation of American National Standards ANSI S1.4-1983 (RI997): Specification of Sound Level Meters. ANSI SI.6-1984 (RI997): Preferred Frequencies, Frequency Levels, and Band Numbers for Acoustical Measurements. ANSI S1.8-1989 (RI997): Reference Quantities for Acoustical Levels. ANSI S1.10-1966 (RI997): Method for the Calibration ofMicrophones. ANSI S1.12-1967 (RI997): Specifications for Laboratory Standard Microphones. ANSI S1.22-1992 (RI997): Scales and Sizes for Frequency Characteristics and Polar Diagrams in Acoustics. ANSI S1.25-1991 (RI997): Specification for Personal Noise Dosemeters. ANSI S1.40-1984 (RI997): Specification for Acoustical Calibrators. Approval of proposed New Work Item for S1: Letter Ballot LB/Sl/450: Specification for Acoustical Calibrators. Approval of change of Title and Scope for Sl/WG22: Letter Ballot LB/Sl/451: New Title: Bubble Detection and Cavitation Monitoring. New Scope: Equipment and techniques are to be described and compared (A) for detection and characterization of small gas-filled cavities or bubbles, especially, those which may serve as sites for cavitation and (B) for monitoring cavitation activity. For purposes (A), optical, electrical and acoustical techniques are employed. For purpo se (B), physical chemical or biological effects produced by cavitation are assessed. Terminology is to be defined . Capabilities limitations of the methods are to be discussed for various applications. Call for comment on proposed American National Standards and American National Standards proposed for ReaHirmation or Withdrawal This section lists proposed American National Standards that solicit public comments and review. The final dates for offering comments, listed in parentheses, are for information only. Copies of these documents are available from ANSI. Final actions on American National Standards ANSI's Board of Standards Review has taken the final action indicated on the standards listed below. When the approved standards are published, an announcement will be carried in Standards Action, in ANSI's Supplements to the Catalog of American National Standards, and in trade publications. 232 NoiselNews International 1998 December
ACOUSTICS ANSI Sl.15-1997-Part 1, Measurement Microphones-Part 1: Specifications for Laboratory Standard Microphones (new standard): 1997 June 06. ANSI SI.43-1997, Specifications for Integrating-Averaging Sound level meters (new standard): 1997 June 12. ANSI S3.5-1997, Methods for the Calculation of the Speech Intelligibility Index (revision of ANSI S3.5-l969) (R1986»: 1997 June 06. Standards News from Abroad (Partially derived from ANSI Reporterand ANSI Standards Action, with appreciation) NeW'ly published ISO and IEC Standards and Technical Reports This section lists new and revised standards and technical reports recently approved and promulgated by ISO and IEC. These documents together with catalog listing several thousand current ISO and IEC standards are available from ANSI. ISO Standards MECHANICAL VIBRATION AND SHOCK (TC 108) ISO 2631-1: 1997, Mechanical vibration and shock-Evaluation cfhuman exposure to whole-body vibration-Part 1: General requirements. ISO 5805: 1997, Mechanical vibration and shock-Human exposure-Vocabulary. IEC Standards ELECTROACOUSTICS (TC 29) IEC 60118-2: 1983/Amendment No.2: 1997, Amendment 2: hearing aids-Part 2: Hearing aids with automatic gain control circuits. AUDIO, VIDEO AND MULTIMEDIA SYSTEMS AND EQUIPMENT (TC 100) IEC 61595-1: 1997, Multichannel digital audio tape recorder (DATR), reel-to-reel system, for professional use-Part 1: Format A.. IEC Draft International Standards This section lists proposed standards that the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC) are considering for approval. The proposals have received substantial support within the technical committees or subcommittees that developed them and are now being circulated to ISO and IEC members for comment and vote. The final dates for offering comments, listed in parentheses, are for information only. Copies of these documents are available from ANSI. IEC Draft Standards ELECTROACOUSTICS (TC 29) 29/361FDIS, IEC 60118-13, Ed. 1: Hearing aids-Part 13: Electromagnetic compatibility (EMC)-Product standard-1997 July 17. 29/371IFDIS, IEC 60942, Ed. 2: Electroacoustics-Sound calibrators-1997 August 30. ELECTROMECHANICAL COMPONENTS AND MECHANICAL STRUCTURES FOR ELECTRONIC EQUIPMENTS (TC 48) 488/6011FDIS, Draft IEC 60512-6-5: Electromechanical components for electronic equipment-Basic testing procedures and measuring methods- part 6: Dynamic stress tests-Section 5: Test 6e Random vibration-1997 June 30. EARTH-MOVING MACHINERY (TC 127) ISO/DIS 7096, Earth-moving machinery-Laboratory evaluation of operator seat vibration (revision of ISO 7096: 1994)-1997 September 26 CEN/CENELEC The following European drafts have been sent to members of the European Committee for Standardization (CEN), and/or the European Committee for E1ectrotechnical Standardization (CENELEC), for enquiry, information and comment. The final dates for offering comments, listed in parentheses, are for information only. Copies of these documents are available from ANSI. CEN European drafts sent for CEN enquiry The following European drafts have been sent to CEN members for enquiry and comment. Ifthe draft is a proposed adoption of an International Standard, it is so noted. The final date for offering comments is listed after each proposal. Copies are available from ANSI. ACOUSTICS prEN ISO 389-7, Acoustics-Reference zero for the calibration of audiometric equipment-Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions (ISO 389-7: 1996) (1997 September 17). prEn ISO 8253-1, Acoustics-Audiometric test methods-Part 1: Basic pure tone air and bone conduction threshold audiometry (ISO 8253-1: 1989) (1997 November 19. prEN ISO 8253·2, Acoustics-Audiometric test methods-Part 2: Sound field audiometry with pure tone and narrow-band test signals (ISO 8253-2: 1992) (1997 November 19. prEN ISO 11690-3, Acoustics-Recommended practice for the design of low-noise workplaces containing machinery-Part 3: Sound propagation and noise prediction in workrooms (ISOITR 11690-3: 1997) (1997 October 29). 19980 December NoiselNewsInternational 233
Page 1 and 2: Volume 6, Number 4 1998 December IN
Page 3 and 4: Editorial Stllff G. Maling, Jr., Ma
Page 5 and 6: Anechoic Chambers with EMW lining T
Page 7 and 8: "Finally, an Outdoor Sound Propagat
Page 9 and 10: YOUR NEXT SOUND METER • Workplace
Page 11 and 12: Feature Noise Control Standards for
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Page 17 and 18: References 1. Council Directive 89/
Page 19 and 20: Feature Advances in Acoustical Stan
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Page 23 and 24: Adaptor for Microphone & Preamplifi
Page 25 and 26: the last twenty years and be ready
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Page 29 and 30: Application to machines with connec
Page 31 and 32: Application with a thin screen. Exa
Page 33 and 34: Application with light single walls
Page 35 and 36: European News A. Cops, European Edi
Page 37 and 38: Pan-American News George Maling, Pa
Page 39 and 40: Contest entry forms and other mater
Page 41: Newly published ISO and IEC Standar
Page 45 and 46: NNI Directory Organizational and Ed
Page 47 and 48: ~----- REAL TIME ANALYSER APPLICATI
Page 49 and 50: Brazil: +55 II 8200388; +55 II 8207
Page 51 and 52: The BS-112 comes equipped with a 6-
Page 53 and 54: 518584 3754; FAX: +1 5185809525; e-
Page 55 and 56: World Conference Calendar This cale
Page 57 and 58: COLIN GORDON & ASSOCIATES Specializ
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