ACOUSTICAL STANDARDS NEWS Free

Accredited Standards Committees S1, Acoustics; S2, Mechanical Vibration and Shock; S3, Bioacoustics; S3/SC 1, Animal Bioacoustics; and S12, Noise; the U.S. Technical Advisory Groups to ISO/TC 43, ISO/TC 43/SC 1, ISO/TC 43/SC 3, ISO/TC 108 and its five Subcommittees, and IEC/TC 29; and ASACOS and the Standards Plenary Group will meet in conjunction with the 169th Meeting of the Acoustical Society of America in Pittsburgh, Pennsylvania, May 18–22, 2015. Specific meeting times will be published at a later date.

Berlin, Germany

• 1–5 September 2014

– ISO/TC 108/SC 4, Human Exposure to Mechanical Vibration and Shock

Paris, France

• 8–12 September 2014

– ISO/TC 108/SC 5, Condition Monitoring and Diagnostics of Machine Systems

Florida, USA

• 17–21 November 2014

– ISO/TC 108/SC 2, Measurement and Evaluation of Mechanical Vibration and Shock as Applied to Machines, Vehicles and Structures

For additional information on these meetings, please contact the Standards Secretariat.

In February of 2014, the ASA Standards Secretariat received a request for clarification of ANSI/ASA S12.60-2010/Part 1 American National Standard Acoustical Performance Criteria, Design Requirements, and Guidelines for Schools, Part 1: Permanent Schools , which is one of two standards currently available at no cost to the end user thanks to generous funding from two corporate sponsors.

Alan Youker of Daikin Applied in Auburn, NY posed the questions as shown below. The questions were forwarded to the co-chairs of ASA S12/WG 52, which was the working group responsible for drafting this standard. After studying the requests, the co-chairs presented the questions to their working group members, along with their proposed response to gauge if the others were in agreement. Thirty-two out of 43 members responded and unanimously concurred with the proposed responses.

Standard Designation, Title, and Clause Number:

ANSI/ASA S12.60-2010/Part 1 American National Standard Acoustical Performance Criteria, Design Requirements, and Guidelines for Schools, Part 1: Permanent Schools

Clause 5.2.1.1: The one-hour average A- and C-weighted exterior-source background noise level within the enclosed space for the noisiest continuous one-hour period during times when learning activities take place shall not exceed the limits specified in Table 1.

Interpretation Request/Question (posed in a format that enables a YES or NO answer):

“My question is regarding the Core Learning Space sound limits discussed throughout Section 5.2 and shown in Table 1 & Table 2. Limits are listed in both A-weighted (35 dBA) and C-weighted values (55 dBC). In section 5.2.1 Exterior source background noise levels, and in Table 1 & 2, the language ‘A- and C-weighted’ is used. In section 5.2.2 Interior-source background noise levels the language ‘A- or C-weighted’ is used.

“To comply with clause 5.2.1.1 does the measured noise level need to be below 35 dBA AND 55 dBC?”

WG recommendation for approval by the Committee:

Yes

Standard Designation, Title, and Clause Number:

ANSI/ASA S12.60-2010/Part 1 American National Standard Acoustical Performance Criteria, Design Requirements, and Guidelines for Schools, Part 1: Permanent Schools

Clause 5.2.2.1 Limits on interior-source A- or C-weighted background noise levels from building services and utilities and calculation of HVAC noise levels

Interpretation Request/Question (posed in a format that enables a YES or NO answer):

“My question is regarding the Core Learning Space sound limits discussed throughout Section 5.2 and shown in Table 1 & Table 2. Limits are listed in both A-weighted (35 dBA) and C-weighted values (55 dBC). In section 5.2.1 Exterior-source background noise levels, and in Table 1 & 2, the language ‘A- and C-weighted’ is used. In section 5.2.2 Interior-source background noise levels the language ‘A- or C-weighted’ is used.

“To comply with clause 5.2.2.1 does the measured noise level need to be below EITHER 35 dBA OR 55 dBC? In other words, if the measured noise level is above 35 dBA but below 55 dBC, or below 35 dBA but above 55 dBC, will the room be in compliance?”

WG recommendation for approval by the Committee:

No

The questions and proposed responses were then circulated as a letter ballot to the entire Accredited Standards Committee S12 for their input and opinions. That ballot closed on March 31, 2014 with unanimous agreement in support of the working group conclusions.

Mr. Youker was informed of the outcome, and the Standards Secretariat, on behalf of the working group, would like to acknowledge and thank Mr. Youker for raising these questions. The relevant text will be clarified in the next revision.

For more information or to obtain your free copy of ANSI/ASA S12.60-2010/Part 1 and/or ANSI/ASA S12.60-2009/Part 2, please visit our Standards Home Page at http://scitation.aip.org/content/asa/standards.

A listing of the Accredited Standards Committees, their Working Groups, their Chairs (listed in parenthesis), and published standards; Chair and Vice Chair of the ASA Committee on Standards (ASACOS); and the U. S. Technical Advisory Group (TAG) Chairs for the International Standards Committees is given here for reference:

(R.J. Peppin, Chair; A, Scharine, Vice Chair)

Scope: Standards, specifications, methods of measurement and test, and terminology in the field of physical acoustics including architectural acoustics, electroacoustics, sonics and ultrasonics, and underwater sound, but excluding those aspects which pertain to biological safety, tolerances and comfort.

S1 Working Groups

S1/Advisory – Advisory Planning Committee to S1 (R.J. Peppin, Chair; A. Scharine, Vice Chair);

S1/WG1 – Standard Microphones and their Calibration (C. Walber);

S1/WG2 – Attenuation of Sound in the Atmosphere (R.J. Peppin);

S1/WG4 – Measurement of Sound Pressure Levels in Air (A.J. Campanella);

S1/WG5 – Band Filter Sets (R.J. Peppin);

S1/WG7 – Personal Noise Dosimeters (P.J. Battenberg and J.P. Seiler, Co-Chairs);

S1/WG15 – Noise Canceling Microphones (R.L. McKinley);

S1/WG16 – FFT Acoustical Analyzers (R.L. McKinley);

S1/WG17 – Sound Level Meters and Integrating Sound Level Meters (G.R. Stephany);

S1/WG19 – Insertion Loss of Windscreens (A.J. Campanella);

S1/WG20 – Ground Impedance (Measurement of Ground Impedance and Attenuation of Sound Due to the Ground (K. Attenborough, Chair; J.M. Sabatier, Vice Chair);

S1/WG27 – Acoustical Terminology (C.R. Greene and J.S. Vipperman, Co-Chairs)

S1 Standards on Acoustics

ANSI/ASA S1.1-2013 American National Standard Acoustical Terminology.

ANSI S1.4-1983 (R 2006) American National Standard Specification for Sound Level Meters. This Standard includes ANSI S1.4A-1985 (R 2006) Amendment to ANSI S1.4-1983.

ANSI/ASA S1.6-1984 (R 2011) American National Standard Preferred Frequencies, Frequency Levels, and Band Numbers for Acoustical Measurements.

ANSI/ASA S1.8-1989 (R 2011) American National Standard Reference Quantities for Acoustical Levels.

ANSI/ASA S1.11-2004 (R 2009) American National Standard Specification for Octave-Band and Fractional-Octave-Band Analog and Digital Filters.

ANSI/ASA S1.13-2005 (R 2010) American National Standard Measurement of Sound Pressure Levels in Air.

ANSI/ASA S1.14-1998 (R 2013) American National Standard Recommendations for Specifying and Testing the Susceptibility of Acoustical Instruments to Radiated Radio-Frequency Electromagnetic Fields, 25 MHz to 1 GHz.

ANSI/ASA S1.15-1997/Part 1 (R 2011) American National Standard Measurement Microphones, Part 1: Specifications for Laboratory Standard Microphones.

ANSI/ASA S1.15-2005/Part 2 (R 2010) American National Standard Measurement Microphones, Part 2: Primary Method for Pressure Calibration of Laboratory Standard Microphones by the Reciprocity Technique.

ANSI S1.16-2000 (R 2005) American National Standard Method for Measuring the Performance of Noise Discriminating and Noise Canceling Microphones.

ANSI S1.17-2014/Part 1 American National Standard Microphone Windscreens—Part 1: Test Procedures for Measurements of Insertion Loss in Still Air.

ANSI/ASA S1.18-2010 American National Standard Method for Determining the Acoustic Impedance of Ground Surfaces.

ANSI/ASA S1.20-2012 American National Standard Procedures for Calibration of Underwater Electroacoustic Transducers.

ANSI S1.25-1991 (R 2007) American National Standard Specification for Personal Noise Dosimeters.

ANSI/ASA S1.26-1995 (R 2009) American National Standard Method for Calculation of the Absorption of Sound by the Atmosphere.

ANSI/ASA S1.40-2006 (R 2011) American National Standard Specifications and Verification Procedures for Sound Calibrators.

ANSI/ASA S1.42-2001 (R 2011) American National Standard Design Response of Weighting Networks for Acoustical Measurements.

ANSI S1.43-1997 (R 2007) American National Standard Specifications for Integrating-Averaging Sound Level Meters.

(C.F. Gaumond, Chair; J.T. Nelson, Vice Chair)

Scope: Standards, specifications, methods of measurement and test, and terminology in the field of mechanical vibration and shock, and condition monitoring and diagnostics of machines, including the effects of exposure to mechanical vibration and shock on humans, including those aspects which pertain to biological safety, tolerance and comfort.

S2/WG1 – S2 Advisory Planning Committee (C.F. Gaumond, Chair; J.T. Nelson, Vice Chair);

S2/WG2 – Terminology and Nomenclature in the Field of Mechanical Vibration and Shock and Condition Monitoring and Diagnostics of Machines (D.J. Evans);

S2/WG3 – Signal Processing Methods (T.S. Edwards);

S2/WG4 – Characterization of the Dynamic Mechanical Properties of Viscoelastic Polymers (W.M. Madigosky, Chair; J.J. Dlubac, Vice Chair)

S2/WG5 – Use and Calibration of Vibration and Shock Measuring Instruments (D.J. Evans);

S2/WG7 – Acquisition of Mechanical Vibration and Shock Measurement Data (VACANT);

S2/WG8 – Analysis Methods of Structural Dynamics (M. Mezache);

S2/WG9 – Training and Accreditation (R.L. Eshleman, Chair; D. Corelli, Vice Chair);

S2/WG10 – Measurement and Evaluation of Machinery for Acceptance and Condition (R.L. Eshleman);

S2/WG10.1 – Balancing (R.L. Eshleman);

S2/WG10.2 – Operational Monitoring and Condition Evaluation (R. Bankert);

S2/WG10.3 – Machinery Testing (R.L. Eshleman);

S2/WG10.4 – Prognosis (A.J. Hess);

S2/WG10.5 – Data Processing, Communication, and Presentation (K. Bever);

S2/WG11 – Measurement and Evaluation of Mechanical Vibration of Vehicles (R. Sonnenschein);

S2/WG12 – Measurement and Evaluation of Structures and Structural Systems for Assessment and Condition Monitoring (M. Mezache);

S2/WG13 – Shock Test Requirements for Shelf-mounted and Other Commercial Electronics Systems (B. Lang);

S2/WG14 – Prediction of Ground-borne Noise and Vibration from Rail Transportation Systems (J.T. Nelson);

S2/WG 15 – Shaft Alignment Methodology (B. Biby);

S2/WG39 – Human Exposure to Mechanical Vibration and Shock (D. D. Reynolds, Chair; R. Dong, Vice Chair);

S2/WG54 – Atmospheric Blast Effects (M.J. White, Chair; J. Kalb, Vice Chair)

ANSI/ASA S2.1-2009 / ISO 2041:2009 American National Standard Mechanical vibration, shock and condition monitoring – Vocabulary (Nationally Adopted International Standard).

ANSI/ASA S2.2-1959 (R 2011) American National Standard Methods for the Calibration of Shock and Vibration Pickups.

ANSI S2.4-1976 (R 2004) American National Standard Method for Specifying the Characteristics of Auxiliary Analog Equipment for Shock and Vibration Measurements.

ANSI/ASA S2.8-2007 (R 2012) American National Standard Technical Information Used for Resilient Mounting Applications.

ANSI/ASA S2.9-2008 (R 2013) American National Standard Parameters for Specifying Damping Properties of Materials and System Damping.

ANSI/ASA S2.16-1997 (R 2011) American National Standard Vibratory Noise Measurements and Acceptance Criteria of Shipboard Equipment.

ANSI/ASA S2.20-1983 (R 2011) American National Standard Estimating Air Blast Characteristics for Single Point Explosions in Air, with a Guide to Evaluation of Atmospheric Propagation and Effects.

ANSI/ASA S2.21-1998 (R 2012) American National Standard Method for Preparation of a Standard Material for Dynamic Mechanical Measurements.

ANSI/ASA S2.22-1998 (R 2012) American National Standard Resonance Method for Measuring the Dynamic Mechanical Properties of Viscoelastic Materials.

ANSI/ASA S2.23-1998 (R 2012) American National Standard Single Cantilever Beam Method for Measuring the Dynamic Mechanical Properties of Viscoelastic Materials.

ANSI/ASA S2.24-2001 (R 2011) American National Standard Graphical Presentation of the Complex Modulus of Viscoelastic Materials.

ANSI/ASA S2.25-2004 (R 2009) American National Standard Guide for the Measurement, Reporting, and Evaluation of Hull and Superstructure Vibration in Ships.

ANSI/ASA S2.26-2001 (R 2011) American National Standard Vibration Testing Requirements and Acceptance Criteria for Shipboard Equipment.

ANSI S2.27-2002 (R 2007) American National Standard Guidelines for the Measurement and Evaluation of Vibration of Ship Propulsion Machinery.

ANSI/ASA S2.28-2009 American National Standard Guide for the Measurement and Evaluation of Broadband Vibration of Surface Ship Auxiliary Rotating Machinery.

ANSI/ASA S2.29-2003 (R 2013) American National Standard Guide for the Measurement and Evaluation of Vibration of Machine Shafts on Shipboard Machinery.

ANSI/ASA S2.31-1979 (R 2009) American National Standard Methods for the Experimental Determination of Mechanical Mobility, Part 1: Basic Definitions and Transducers.

ANSI/ASA S2.32-1982 (R 2009) American National Standard Methods for the Experimental Determination of Mechanical Mobility, Part 2: Measurements Using Single-Point Translational Excitation.

ANSI/ASA S2.34-1984 (R 2010) American National Standard Guide to the Experimental Determination of Rotational Mobility Properties and the Complete Mobility Matrix.

ANSI/ASA S2.46-1989 (R 2010) American National Standard Characteristics to be Specified for Seismic Transducers.

ANSI/ASA S2.61-1989 (R 2010) American National Standard Guide to the Mechanical Mounting of Accelerometers.

ANSI/ASA S2.62-2009 American National Standard Shock Test Requirements for Equipment in a Rugged Shock Environment.

ANSI/ASA S2.70-2006 (R 2011) American National Standard Guide for the Measurement and Evaluation of Human Exposure to Vibration Transmitted to the Hand.

ANSI/ASA S2.71-1983 (R 2012) American National Standard Guide to the Evaluation of Human Exposure to Vibration in Buildings.

ANSI/ASA S2.72-2002/Part 1/ISO 2631-1:1997 (R 2012) American National Standard Mechanical vibration and shock - Evaluation of human exposure to whole-body vibration – Part 1: General requirements (Nationally Adopted International Standard).

ANSI/ASA S2.72/Part 1 Amd. 1-2010 / ISO 2631-1 Amd. 1:2010 (R 2012) American National Standard Mechanical vibration and shock - Evaluation of human exposure to whole-body vibration – Part 1: General requirements – Amendment 1 (Nationally Adopted International Standard Amendment).

ANSI/ASA S2.72-2003/Part 4 / ISO 2631-4:2001 (R 2012) American National Standard Mechanical vibration and shock - Evaluation of human exposure to whole-body vibration – Part 4: Guidelines for the evaluation of the effects of vibration and rotational motion on passenger and crew comfort in fixed-guideway transport systems (Nationally Adopted International Standard).

ANSI/ASA S2.72/Part 4 Amd. 1-2010 / ISO 2631-4 Amd. 1:2010 (R 2012) American National Standard Mechanical vibration and shock - Evaluation of human exposure to whole-body vibration – Part 4: Guidelines for the evaluation of the effects of vibration and rotational motion on passenger and crew comfort in fixed-guideway transport systems – Amendment 1 (Nationally Adopted International Standard Amendment).

ANSI/ASA S2.73-2014 / ISO 10819:2013 American National Standard Mechanical vibration and shock - Hand-arm vibration – Measurement and evaluation of the vibration transmissibility of gloves at the palm of the hand (Nationally Adopted International Standard).

(C.J. Struck, Chair; P. Nelson, Vice Chair)

Scope: Standards, specifications, methods of measurement and test, and terminology in the fields of psychological and physiological acoustics, including aspects of general acoustics which pertain to biological safety, tolerance and comfort.

S3/Advisory – Advisory Planning Committee to S3 (C.J. Struck, Chair; P. Nelson, Vice Chair);

S3/WG35 – Audiometric Equipment (R.L. Grason);

S3/WG36 – Subjective Speech Intelligibility Testing (A. Scharine);

S3/WG37 – Couplers, Ear Simulators, and Earphones (C.J. Struck);

S3/WG39 – Human Exposure to Mechanical Vibration and Shock - Parallel to ISO/TC 108/SC4 (D.D. Reynolds, Chair; R. Dong, Vice Chair);

S3/WG48 – Hearing Aid Measurement (D.A. Preves);

S3/WG51 – Auditory Magnitudes (P. Davies);

S3/WG56 – Criteria for Background Noise for Audiometric Testing (J.R. Franks, W.J. Murphy, Co-Chairs);

S3/WG58 – Hearing Conservation Criteria (W.J. Murphy);

S3/WG59 – Measurement of Speech Levels (M.A. Ericson);

S3/WG62 – Impulse Noise with Respect to Hearing Hazard (G.R. Price);

S3/WG67 – Manikins (C.J. Struck);

S3/WG72 – Measurement of Auditory Evoked Potentials (R.F. Burkard);

S3/WG73 – Bioacoustical Terminology (C.J. Struck);

S3/WG79 – Methods for Calculation of the Speech Intelligibility Index (C.V. Pavlovic);

S3/WG80 – Probe-tube Measurements of Hearing Aid Performance (W.A. Cole);

S3/WG81 – Hearing Assistance Technologies (L.K. Thibodeau, L.A. Wilber, Co-Chairs);

S3/WG83 – Sound Field Audiometry (T.R. Letowski);

S3/WG84 – Otoacoustic Emission (D.K. Brown);

S3/WG88 – Audible Emergency Evacuation Signals (A. Berezowski);

S3/WG89 – Spatial Audiometry in Real and Virtual Environments (N. Iyer and R.L. McKinley, Co-Chairs);

S3/WG91 – Text-to-Speech Synthesis Systems (A.K. Syrdal);

S3/WG93 – Rotary Chair for Vestibular Function Testing (R.F. Burkard and C. Wall, Co-Chairs)

S3/L1 – S3 U. S. TAG Liaison to IEC/TC 87 Ultrasonics (VACANT).

ANSI/ASA S3.1-1999 (R 2013) American National Standard Maximum Permissible Ambient Noise Levels for Audiometric Test Rooms.

ANSI/ASA S3.2-2009 American National Standard Method for Measuring the Intelligibility of Speech over Communication Systems.

ANSI/ASA S3.4-2007 (R 2012) American National Standard Procedure for the Computation of Loudness of Steady Sounds.

ANSI/ASA S3.5-1997 (R 2012) American National Standard Methods for Calculation of the Speech Intelligibility Index.

ANSI/ASA S3.6-2010 American National Standard Specification for Audiometers.

ANSI/ASA S3.7-1995 (R 2008) American National Standard Method for Coupler Calibration of Earphones.

ANSI/ASA S3.13-1987 (R 2012) American National Standard Mechanical Coupler for Measurement of Bone Vibrators.

ANSI/ASA S3.20-1995 (R 2008) American National Standard Bioacoustical Terminology.

ANSI/ASA S3.21-2004 (R 2009) American National Standard Methods for Manual Pure-Tone Threshold Audiometry.

ANSI/ASA S3.22-2009 American National Standard Specification of Hearing Aid Characteristics.

ANSI/ASA S3.25-2009 American National Standard for an Occluded Ear Simulator.

ANSI/ASA S3.35-2010 American National Standard Method of Measurement of Performance Characteristics of Hearing Aids under Simulated Real-Ear Working Conditions.

ANSI/ASA S3.36-2012 American National Standard Specification for a Manikin for Simulated in situ Airborne Acoustic Measurements.

ANSI/ASA S3.37-1987 (R 2012) American National Standard Preferred Earhook Nozzle Thread for Postauricular Hearing Aids.

ANSI/ASA S3.39-1987 (R 2012) American National Standard Specifications for Instruments to Measure Aural Acoustic Impedance and Admittance (Aural Acoustic Immittance).

ANSI S3.41-1990 (R 2008) American National Standard Audible Emergency Evacuation Signal.

ANSI/ASA S3.42-1992/Part 1 (2012) American National Standard Testing Hearing Aids with a Broad-Band Noise Signal.

ANSI/ASA S3.42-2012/Part 2 / IEC 60118-15:2012 American National Standard Testing Hearing Aids – Part 2: Methods for characterizing signal processing in hearing aids with a speech-like signal (Nationally Adopted International Standard).

ANSI S3.44-1996 (R 2006) American National Standard Determination of Occupational Noise Exposure and Estimation of Noise-Induced Hearing Impairment.

ANSI/ASA S3.45-2009 American National Standard Procedures for Testing Basic Vestibular Function.

ANSI/ASA S3.46-2013 American National Standard Methods of Measurement of Real-Ear Performance Characteristics of Hearing Aids.

ANSI/ASA S3.47-2014 American National Standard Specification of Performance Measurement of Hearing Assistance Devices/Systems.

ANSI/ASA S3.50-2013 American National Standard Method for Evaluation of the Intelligibility of Text-to-Speech Synthesis Systems.

ANSI/ASA S3.55-2014/Part 1 / IEC 60318-1:2009 American National Standard Electroacoustics – Simulators of Human Head and Ear – Part 1: Ear Simulator for the Measurement of Supra-aural and Circumaural Earphones (Nationally Adopted International Standard).

(D.K. Delaney, Chair; D.S. Houser, Vice Chair)

Scope: Standards, specifications, methods of measurement and test, instrumentation and terminology in the field of psychological and physiological acoustics, including aspects of general acoustics which pertain to biological safety, tolerance and comfort of non-human animals, including both risk to individual animals and to the long-term viability of populations. Animals to be covered may potentially include commercially grown food animals; animals harvested for food in the wild; pets; laboratory animals; exotic species in zoos, oceanaria or aquariums; or free-ranging wild animals.

S3/SC 1/Advisory – Advisory Planning Committee to S3/SC 1 (D.K. Delaney, Chair; D.S. Houser, Vice Chair);

S3/SC 1/WG1 – Animal Bioacoustics Terminology (A.E. Bowles);

S3/SC 1/WG2 – Effects of Sound on Fish and Turtles (R.R. Fay, A.N. Popper, Co-Chairs);

S3/SC 1/WG3 – Underwater Passive Acoustic Monitoring for Bioacoustic Applications (A.M. Thode);

S3/SC 1/WG4 – Description and Measurement of the Ambient Sound in Parks, Wilderness Areas, and Other Quiet and/or Pristine Areas (K. Fristrup, M. McKenna, Co-Chairs);

S3/SC 1/WG5 – Noise and Vibration in Animal Laboratory Facilities (G.M. Glickman, K. Riegel, Co-Chairs).

(W.J. Murphy, Chair; S.J. Lind, Vice Chair)

Scope: 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.

S12/Advisory – Advisory Planning Committee to S12 (W.J. Murphy, Chair; S.J. Lind, Vice Chair);

S12/WG3 – Measurement of Noise from Information Technology and Telecommunications Equipment (S. Bard);

S12/WG11 – Hearing Protector Attenuation and Performance (E.H. Berger);

S12/WG15 – Measurement and Evaluation of Outdoor Community Noise (P.D. Schomer);

S12/WG18 – Criteria for Room Noise (R.J. Peppin);

S12/WG23 – Determination of Sound Power (B.M. Brooks, J.G. Schmitt, Co-chairs);

S12/WG31 – Predicting Sound Pressure Levels Outdoors (R.J. Peppin);

S12/WG32 – Revision of ANSI S12.7-1986 Methods for Measurement of Impulse Noise (W.A. Ahroon);

S12/WG38 – Noise Labeling in Products (R.D. Hellweg);

S12/WG40 – Measurement of the Noise Aboard Ships (S.P. Antonides, Chair; S.A. Fisher, Vice Chair);

S12/WG41 – Model Community Noise Ordinances (L.S. Finegold, Chair; B.M. Brooks, Vice Chair);

S12/WG44 – Speech Privacy (G.C. Tocci, Chair; D.M. Sykes, Vice Chair);

S12/WG45 – Measurement of Occupational Noise Exposure from Telephone Equipment (K.A. Woo, Chair; L.A. Wilber, Vice Chair);

S12/WG47 – Underwater Noise Measurements of Ships (M.A. Bahtiarian, Chair; D.J. Vendittis, Vice Chair);

S12/WG49 – Noise from Hand-operated Power Tools, excluding Pneumatic Tools (C.S. Hayden, Chair; B.M. Brooks, Vice Chair);

S12/WG50 – Information Technology (IT) Equipment in Classrooms (R.D. Hellweg)

S12/WG51 – Procedure for Measuring the Ambient Noise Level in a Room (J.G. Lilly);

S12/WG52 – Revision of ANSI S12.60-2002 (S.J. Lind, P.D. Schomer, Co-Chairs)

S12/WG53 – High Performance Aircraft Noise Measurement (R.L. McKinley);

S12/WG54 – Measurement of Low-frequency Sound (G. Hessler, G.W. Kamperman, P.D. Schomer, Co-Chairs);

S12/WG55 – Guidelines for the Specification of Noise Emission of Machinery (W.M. Beltman, Chair; R.J. Peppin, Vice Chair);

S12/WG56 – Assessing Visitor Response to Noise at Parks (P.D. Schomer)

S12/L1 – IEEE 85 Committee for TAG Liaison - Noise Emitted by Rotating Electrical Machines (Parallel to ISO/TC 43/SC 1/WG 13) (R.G. Bartheld);

S12/L2 – Measurement of Noise from Pneumatic Compressors Tools and Machines (Parallel to ISO/TC 43/SC 1/WG 9) (VACANT);

S12/L3 – SAE Committee for TAG Liaison on Measurement and Evaluation of Motor Vehicle Noise (parallel to ISO/TC 43/SC 1/WG 8) (R.F. Schumacher);

S12/L4 – SAE Committee A-21 for TAG Liaison on Measurement and Evaluation of Aircraft Noise (V.E. Mestre, D. Rhodes, Co-Chairs);

S12/L5 – ASTM E-33 on Environmental Acoustics (to include activities of ASTM E33.06 on Building Acoustics, parallel to ISO/TC 43/SC 2 and ASTM E33.09 on Community Noise) (K.P. Roy);

S12/L6 – SAE Construction-Agricultural Sound Level Committee (I. Douell);

S12/L7 – SAE Specialized Vehicle and Equipment Sound Level (T.M. Disch);

S12/L8 – ASTM PTC No. 36 Measurement of Industrial Sound (D. Parzych, Chair; B.M. Brooks, Vice Chair)

ANSI/ASA S12.1-1983 (R 2011) American National Standard Guidelines for the Preparation of Standard Procedures to Determine the Noise Emission from Sources.

ANSI/ASA S12.2-2008 American National Standard Criteria for Evaluating Room Noise.

ANSI/ASA S12.3-1985 (R 2011) American National Standard Statistical Methods for Determining and Verifying Stated Noise Emission Values of Machinery and Equipment.

ANSI/ASA S12.5-2006/ISO 6926:1999 (R 2011) American National Standard Acoustics - Requirements for the Performance and Calibration of Reference Sound Sources Used for the Determination of Sound Power Levels (Nationally Adopted International Standard).

ANSI/ASA S12.6-2008 American National Standard Methods for Measuring the Real-Ear Attenuation of Hearing Protectors.

ANSI S12.7-1986 (R 2006) American National Standard Methods for Measurements of Impulse Noise.

ANSI/ASA S12.8-1998 (R 2013) American National Standard Methods for Determining the Insertion Loss of Outdoor Noise Barriers.

ANSI/ASA S12.9-2013/Part 1 American National Standard Quantities and Procedures for Description and Measurement of Environmental Sound, Part 1: Basic Quantities and Definitions.

ANSI/ASA S12.9-1992/Part 2 (R 2013) American National Standard Quantities and Procedures for Description and Measurement of Environmental Sound, Part 2: Measurement of Long-Term, Wide-Area Sound.

ANSI/ASA S12.9-2013/Part 3 American National Standard Quantities and Procedures for Description and Measurement of Environmental Sound, Part 3: Short-term Measurements with an Observer Present.

ANSI S12.9-2005/Part 4 American National Standard Quantities and Procedures for Description and Measurement of Environmental Sound, Part 4: Noise Assessment and Prediction of Long-Term Community Response.

ANSI/ASA S12.9-2007/Part 5 (R 2012) American National Standard Quantities and Procedures for Description and Measurement of Environmental Sound - Part 5: Sound Level Descriptors for Determination of Compatible Land Use.

ANSI/ASA S12.9-2008/Part 6 American National Standard Quantities and Procedures for Description and Measurement of Environmental Sound - Part 6: Methods for Estimation of Awakenings Associated with Outdoor Noise Events Heard in Homes.

ANSI/ASA S12.10-2010/Part 1 American National Standard Acoustics – Measurement of Airborne Noise Emitted by Information Technology and Telecommunications Equipment – Part 1: Determination of Sound Power Level and Emission Sound Pressure Level.

ANSI/ASA S12.10-2011/Part 2 American National Standard Acoustics – Measurement of Airborne Noise Emitted by Information Technology and Telecommunications Equipment – Part 2: Declaration of Noise Emission Levels.

ANSI/ASA S12.11-2013/Part 1 / ISO 10302-1:2011 American National Standard Acoustics – Measurement of airborne noise emitted and structure-borne vibration induced by small air-moving devices – Part 1: Airborne noise measurement (Nationally Adopted International Standard).

ANSI/ASA S12.11-2013/Part 2/ISO 10302-2:2011 American National Standard Acoustics – Measurement of airborne noise emitted and structure-borne vibration induced by small air-moving devices – Part 2: Structure-borne vibration measurements (Nationally Adopted International Standard).

ANSI/ASA S12.12-1992 (R 2012) American National Standard Engineering Method for the Determination of Sound Power Levels of Noise Sources Using Sound Intensity.

ANSI/ASA S12.13 TR-2002 (R 2011) ANSI Technical Report Evaluating the Effectiveness of Hearing Conservation Programs through Audiometric Data Base Analysis.

ANSI/ASA S12.14-1992 (R 2012) American National Standard Methods for the Field Measurement of the Sound Output of Audible Public Warning Devices Installed at Fixed Locations Outdoors.

ANSI/ASA S12.15-1992 (R 2007) American National Standard For Acoustics - Portable Electric Power Tools, Stationary and Fixed Electric Power Tools, and Gardening Appliances – Measurement of Sound Emitted.

ANSI/ASA S12.16-1992 (R 2013) American National Standard Guidelines for the Specification of Noise of New Machinery.

ANSI/ASA S12.17-1996 (R 2011) American National Standard Impulse Sound Propagation for Environmental Noise Assessment.

ANSI/ASA S12.18-1994 (R 2009) American National Standard Procedures for Outdoor Measurement of Sound Pressure Level.

ANSI/ASA S12.19-1996 (R 2011) American National Standard Measurement of Occupational Noise Exposure.

ANSI/ASA S12.23-1989 (R 2011) American National Standard Method for the Designation of Sound Power Emitted by Machinery and Equipment.

ANSI/ASA S12.42-2010 American National Standard Methods for the Measurement of Insertion Loss of Hearing Protection Devices in Continuous or Impulsive Noise Using Microphone-in-Real-Ear or Acoustic Test Fixture Procedures.

ANSI/ASA S12.43-1997 (R 2012) American National Standard Methods for Measurement of Sound Emitted by Machinery and Equipment at Workstations and Other Specified Positions.

ANSI/ASA S12.44-1997 (R 2012) American National Standard Methods for Calculation of Sound Emitted by Machinery and Equipment at Workstations and Other Specified Positions from Sound Power Level.

ANSI/ASA S12.50-2002 / ISO 3740:2000 (R 2012) American National Standard Acoustics -Determination of sound power levels of noise sources - Guidelines for the use of basic standards (Nationally Adopted International Standard).

ANSI/ASA S12.51-2012 / ISO 3741:2010 American National Standard Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure – Precision methods for reverberation test rooms (Nationally Adopted International Standard).

ANSI/ASA S12.53-2011/Part 1 / ISO 3743-1:2010 American National Standard Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure- Engineering methods for small, movable sources in reverberant fields - Part 1: Comparison method for a hard-walled test room (Nationally Adopted International Standard).

ANSI/ASA S12.53-1999/Part 2 (R 2009) / ISO 3743-2:1994 American National Standard Acoustics - Determination of sound power levels of noise sources using sound pressure – Engineering methods for small, movable sources in reverberant fields - Part 2: Methods for special reverberation test rooms (Nationally Adopted International Standard).

ANSI/ASA S12.54-2011 / ISO 3744:2010 American National Standard Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure – Engineering methods for an essentially free field over a reflecting plane (Nationally Adopted International Standard).

ANSI/ASA S12.55-2012 / ISO 3745:2012 American National Standard Acoustics - Determination of sound power levels of noise sources using sound pressure – Precision methods for anechoic and hemi-anechoic rooms (Nationally Adopted International Standard).

ANSI/ASA S12.56-2011 / ISO 3746:2010 American National Standard Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure – Survey method using an enveloping measurement surface over a reflecting plane (Nationally Adopted International Standard).

ANSI/ASA S12.57-2011 / ISO 3747:2010 American National Standard Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure – Engineering/survey methods for use in situ in a reverberant environment (Nationally Adopted International Standard).

ANSI/ASA S12.58-2012 American National Standard Sound Power Level Determination for Sources Using a Single-source Position.

ANSI/ASA S12.60-2010/Part 1 American National Standard Acoustical Performance Criteria, Design Requirements, and Guidelines for Schools – Part 1: Permanent 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.

ANSI/ASA S12.62-2012 / ISO 9613-2:1996 (MOD) American National Standard Acoustics –Attenuation of sound during propagation outdoors – Part 2: General method of calculation (Modified Nationally Adopted International Standard).

ANSI/ASA S12.64-2009/Part 1 American National Standard Quantities and Procedures for Description and Measurement of Underwater Sound from Ships – Part 1: General Requirements.

ANSI/ASA S12.65-2006 (R 2011) American National Standard for Rating Noise with Respect to Speech Interference.

ANSI/ASA S12.67-2008 (R 2013) American National Standard Pre-Installation Airborne Sound Measurements and Acceptance Criteria of Shipboard Equipment.

ANSI/ASA S12.68-2007 (R 2012) American National Standard Methods of Estimating Effective A-Weighted Sound Pressure Levels When Hearing Protectors are Worn.

ANSI/ASA S12.69-2010 American National Standard Procedure for Testing Railroad Horns ex situ.

ANSI/ASA S12.75-2012 American National Standard Methods for the Measurement of Noise Emissions from High Performance Military Jet Aircraft.

ASACOS (P. D. Schomer, Chair and ASA Standards Director; and R.D. Hellweg, Vice Chair)

ISO/TC 43 – Acoustics and ISO/TC 43 /SC 1 – Noise (P.D. Schomer, U.S. TAG Chair);

ISO/TC 43/SC 3 – Underwater Acoustics (M.A. Bahtiarian, U.S. TAG Chair);

ISO/TC 108 – Mechanical Vibration, Shock and Condition Monitoring (W. Madigosky, U.S. TAG Chair);

ISO/TC 108/SC2 – Measurement and Evaluation of Mechanical Vibration and Shock as Applied to Machines, Vehicles and Structures (W.C. Foiles, U.S. TAG Chairs);

ISO/TC 108/SC3 – Use and Calibration of Vibration and Shock Measuring Instruments (D.J. Evans, U.S. TAG Chair);

ISO/TC 108/SC4 – Human Exposure to Mechanical Vibration and Shock (D.D. Reynolds, U.S. TAG Chair);

ISO/TC 108/SC5 – Condition Monitoring and Diagnostic Machines (D.J. Vendittis, U.S. TAG Chair);

IEC/TC 29 – Electroacoustics (P.J. Battenberg, U.S. Technical Advisor).

(Partially derived from ANSI Standards Action, with appreciation)

This section solicits comments on proposed new American National Standards and on proposals to revise, reaffirm, or withdrawal approval of existing standards. The dates listed in parenthesis are for information only.

BSR/ASA S1.26-201x, Methods for Calculation of the Absorption of Sound by the Atmosphere (revision of ANSI/ASA S1.26-1995 (R2009))

This Standard provides the means to calculate atmospheric absorption losses of sound from any source, over a wide range of meteorological conditions. Attenuation coefficients for pure-tone sounds are calculated by means of equations (or a table) for the frequency of the sound, and the humidity, pressure, and temperature of the atmosphere. For sounds analyzed by fractional-octave-band filters, alternative methods to calculate the attenuation caused by atmospheric absorption are provided. (May 19, 2014)

BSR/ASA S1.11-201x/Part 1/IEC 61260-1:2014, Electroacoustics – Octave-band and fractional-octave-band filters - Part 1: Specifications (identical national adoption of IEC 61260-1:2014 and revision of ANSI/ASA S1.11-2004 (R2009))

Proposed identical national adoption provides performance requirements for analog, sampled-data, and digital implementations of bandpass filters that comprise a filter set or spectrum analyzer for acoustical measurements. Differs from previous versions of ANSI/ASA S1.11 in that IEC 61260 has been adopted in full: (1) the original the test methods of IEC 61260 cl. 5 that was moved to an informative was replaced as normative, (2) the term band number was replaced, and (3) some references were removed. (June 23, 2014)

BSR/ASA S2.25-2004 (R201x), Guide for the Measurement, Reporting, and Evaluation of Hull and Superstructure Vibration in Ships (reaffirmation of ANSI/ASA S2.25-2004 (R2009))

This standard contains guidelines for limiting the hull and superstructure vibration of ships for the purposes of habitability and mechanical suitability. The mechanical suitability guidelines result in a suitable environment for installed equipment and preclude many major vibration problems, such as unbalance, misalignment, and other damage to the propulsion system. To obtain data to compare with the guidelines, this standard also specifies data acquisition and processing procedures. (June 16, 2014)

BSR/ASA S2.62-2009 (R201x), Shock Test Requirements for Equipment in a Rugged Shock Environment (reaffirmation of ANSI/ASA S2.62-2009)

Standard to be used for testing equipment that will be subjected to shock. It defines test requirements and severity thresholds for a large range of shock environments, including but not limited to shipping, transport, and rugged operational environments. This standard allows vendors to better market and users to more easily identify equipment that will operate or simply survive in rugged shock environments. (June 16, 2014)

BSR/ASA S3.2-2009 (R201x), Method for Measuring the Intelligibility of Speech over Communication Systems (reaffirmation of ANSI/ASA S3.2-2009)

This standard includes measurement of speech intelligibility over entire communication systems, evaluation of the contributions of elements of speech communication systems, and evaluation of factors that affect the intelligibility of speech. Speech intelligibility over a communication system is measured by comparing the monosyllabic words trained listeners receive and identify with the words trained talkers speak into a communication system that connects the talkers with the listeners. (May 19, 2014)

BSR/ASA S2.27-2002 (R201x), Guidelines for the Measurement and Evaluation of Vibration of Ship Propulsion Machinery (reaffirmation and redesignation of ANSI S2.27-2002 (R2007)) This standard contains guidelines for the measurement and evaluation of vibration of ship propulsion systems including limits for acceptability. It is applicable to all ocean-going ships and inland vessels. Test conditions, instrumentation, data analysis and evaluation, and reporting requirements are described. (June 2, 2014)

INCITS/ISO/IEC 40500:2012, Information technology – W3C Web Content Accessibility Guidelines (WCAG) 2.0 (identical national adoption of ISO/IEC 40500:2012)

ISO/IEC 40500:2012 [Web Content Accessibility Guidelines (WCAG) 2.0] covers a wide range of recommendations for making Web content more accessible. Following these guidelines will make content accessible to a wider range of people with disabilities, including blindness and low vision, deafness and hearing loss, learning disabilities, cognitive limitations, limited movement, speech disabilities, photo-sensitivity and combinations of these. Following these guidelines will also often make your Web content more usable to users in general. (June 16, 2014)

The standards actions listed below have been approved by the ANSI Board of Standards Review (BSR) or by an ANSI-Audited Designator, as applicable.

ANSI/ASA S1.17-2014/Part 1, Microphone Windscreens - Part 1: Test Procedures for Measurements of Insertion Loss in Still Air (revision of ANSI S1.17-2004/Part 1)

ASA (ASC S2) (Acoustical Society of America)

ANSI/ASA S2.28-2009 (R2014), Guide for the Measurement and Evaluation of Broadband Vibration of Surface Ship Auxiliary Rotating Machinery (reaffirmation of ANSI/ASA S2.28-2009):

ANSI/ASA S2.73-2013/ISO 10819:2013, Mechanical Vibration and shock - Hand-arm vibration - Measurement and evaluation of the vibration transmissibility of gloves at the palm of the hand (identical national adoption of ISO 10819:2013)

ANSI/ASA S3.45-2009 (R2014), Procedures for Testing Basic Vestibular Function (reaffirmation of ANSI/ASA S3.45-2009)

ANSI/AHRI Standard 230-2013, Sound Intensity Testing Procedures for Determining Sound Power of HVAC Equipment (new standard)

ANSI/AHRI Standard 250-2013, Performance and Calibration of Reference Sound Sources (revision of ANSI/AHRI Standard 250-201x)

ANSI Procedures require notification of ANSI by ANSI-accredited standards developers (ASD) of the initiation and scope of activities expected to result in new or revised American National Standards (ANS). Early notification of activity intended to reaffirm or withdraw an ANS and in some instances a PINS related to a national adoption is optional. The mechanism by which such notification is given is referred to as the PINS process. For additional information, see clause 2.4 of the ANSI Essential Requirements: Due Process Requirements for American National Standards.

Following is a list of proposed actions and new ANS that have been received recently from ASDs. Please also review the section in Standards Action entitled “American National Standards Maintained Under Continuous Maintenance” for additional or comparable information with regard to standards maintained under the continuous maintenance option. To view information about additional standards for which a PINS has been submitted and to search approved ANS, please visit www.NSSN.org, which is a database of standards information. Note that this database is not exhaustive.

Directly and materially affected interests wishing to receive more information or to submit comments are requested to contact the standards developer directly within 30 days of the publication of this announcement.

BSR/ASA S1.18-201x, Method for Determining the Acoustic Impedance of Ground Surfaces (revision of ANSI/ASA S1.18-2010)

This standard describes procedures for obtaining the real and imaginary parts of normalized acoustic impedance ratio of ground surfaces from in situ measurements of the sound pressure levels at two vertically separated microphones using specified geometries and the averaged values of the difference between the simultaneous instantaneous sound-pressure signals at the two microphones. Project Need: The current standard should be revised (a) to relax the need for prescribed geometries and sources (based on a recent work by Kirk Alberts, JASA EL, DOI 10.1121/1.4826149 and by Soh et al. JASA 128 (5) EL286 - EL293) and (b) to allow for improvements in commonly available instrumentation including guidance on the use of Sound Level Meters with spectral analysis capabilities. Stakeholders: Acoustical engineers, researchers interested in outdoor sound.

BSR/ASA S1.11-201x /Part 1/ IEC 61260-1:2014, Electroacoustics - Octave-band and fractional-octave-band filters - Part 1: Specifications (identical national adoption of IEC 61260-1:2014 and revision of ANSI/ASA S1.11-2004 (R2009))

This part of the IEC 61260 series specifies performance requirements for analog, sampled-data, and digital implementations of band-pass filters. The extent of the pass-band region of a filter's relative attenuation characteristic is a constant percentage of the exact midband frequency for all filters of a given bandwidth. An instrument conforming to the requirements of this standard may contain any number of contiguous band-pass filters covering any desired frequency range. Project Need: This new edition of IEC 61260-1 is technically improved over the older ANSI/ASA S1.11. The IEC intends to follow on with two additional parts (pattern evaluation tests and periodic tests), which we anticipate adopting upon completion, subject to TAG approval. Stakeholders: Acousticians, noise control engineers, scientists, engineers, government agencies charged with enforcement of noise control or environmental regulations.

BSR/ASA S12.10-201x/Part 2, Measurement of Airborne Noise Emitted by Information Technology and Telecommunications Equipment - Part 2: Declaration of Noise Emission Levels (revision of ANSI/ASA S12.10-2011/Part 2)

The methods prescribed define how to calculate and disclose two noise emission specification values: the mean A-weighted sound power level LWA,m and the mean A-weighted sound pressure level LpA,m at the operator or bystander positions. Additionally, the mean sound power level is accompanied by a statistical adder for verification, Kv, for a batch of machines. These results enable 3rd party verification, and permits consistent comparison of IT equipment by consumers, purchasing agencies, etc. Project Need: The recently revised ECMA 109 standard has made a significant change in declaring mean (measured) level accompanied by a statistical adder as opposed to listing a single value of an “upper limit” for declared sound power levels. This new version is being brought forward for ANSI S12.10 Part 2 adoption to harmonize the standards in support of the concept of declaring the mean. Stakeholders: Information technology and telecommunications equipment.

(Partially derived from ANSI Reporter and ANSI Standards Action, with appreciation)

Listed here are new and revised standards recently approved and promulgated by ISO, the International Organization for Standardization

ISO 10140-5/Amd1:2014, Acoustics - Laboratory measurement of sound insulation of building elements - Part 5: Requirements for test facilities and equipment - Amendment 1: Rainfall sound

ISO 10844:2014, Acoustics - Specification of test tracks for measuring noise emitted by road vehicles and their tires

ISO 18431-3:2014, Mechanical vibration and shock – Signal processing - Part 3: Methods of time-frequency analysis

ISO 18436-7:2014, Condition monitoring and diagnostics of machines - Requirements for qualification and assessment of personnel – Part 7: Thermography

ISO 18436-2:2014, Condition monitoring and diagnostics of machines - Requirements for qualification and assessment of personnel – Part 2: Vibration condition monitoring and diagnostics

IEC/TS 62556 Ed. 1.0 en:2014, Ultrasonics - Field characterization - Specification and measurement of field parameters for high intensity therapeutic ultrasound (HITU) transducers and systems

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 dates listed in parenthesis are for information only.

ISO/DIS 16063-32, Methods for the calibration of vibration and shock transducers - Part 32: Resonance testing - Testing the frequency and the phase response of accelerometers by means of shock excitation (7/5/2014)

65B/910/CDV, IEC 60534-8-4, Ed. 3.0: Industrial-process control valves - Part 8-4: Noise considerations - Prediction of noise generated by hydrodynamic flow (07/04/2014)

59C/178/CDV, IEC 60704-2-5 A1 Ed.2: Amendment 1 to IEC 60704-2 -5 Ed.2: Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2-5: Particular requirements for electric thermal storage room heaters (07/18/2014)

49/1097/CDV, IEC 62575-1 Ed.1: Radio frequency (RF) bulk acoustic wave (BAW) filters of assessed quality - Part 1: Generic specification (07/11/2014)