Design and Verification of Acoustic Room for Consumer Product Safety Testing

Shulun Mak; Chiho Li; Waifan Tang; Chiwing Lai

doi:doi:10.11648/j.eas.20200503.11

| Peer-Reviewed

Design and Verification of Acoustic Room for Consumer Product Safety Testing

Shulun Mak, Chiho Li, Waifan Tang, Chiwing Lai

Published in Engineering and Applied Sciences (Volume 5, Issue 3)

Received: 9 April 2020 Accepted: 22 May 2020 Published: 3 June 2020

Views: Downloads:

Download PDF

Share This Article

Twitter
Linked In
Facebook

Abstract

Sound Producing Toys consists the sound emitting characteristics to attract children’s attention, such as emitting music or simulating animal’s call. The excess sound pressure level (SPL) could damage the human hearing. The international toy safety standards are established to limit the maximum sound pressure level emitted from the product. The Chief Executive of the Hong Kong SAR established the Task Force on Economic Challenges (TFEC) on October 2008. In early 2009, the TFEC has identified six economic areas where Hong Kong enjoys clear advantages. The Six Industries are (i) testing, inspection and certification (TIC), (ii) medical services, (iii) innovation and technology, (iv) cultural and creative industries, (v) environmental industries, and (vi) educational services. The Open University of Hong Kong is offering the undergraduate degree programmes in testing and certification. For the teaching and research purpose, an acoustic room was built to support the areas of sound pressure level measurement in the Open University of Hong Kong. The acoustic room was primarily designed to serve the sound pressure level measurement of the consumer products, including toys and children’s products and gain the Hong Kong Laboratory Accreditation Scheme (HOKLAS) with reference to ISO/IEC 17025. This paper describes the flow of design, consideration of design factors, verification method, applications and limitations of acoustic chamber.

Published in	Engineering and Applied Sciences (Volume 5, Issue 3)
DOI	10.11648/j.eas.20200503.11
Page(s)	50-55
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Acoustics, Safety, Sound Pressure Level, Toys

References

[1]	Mills, I. M., Taylor, B. N., & Thor, A. J. “Definitions of the units radian, neper, bel and decibel. Metrologia”, 38 (4),, 2001, pp. 353.
[2]	Axelsson, Alf. "The risk of sensorineural hearing loss from noisy toys and recreational activities in children and teenagers." International Journal for Consumer and Product Safety 3.3 (1996): 137-146.
[3]	Brookhouser, Patrick E., Don W. Worthington, and William J. Kelly. "Noise‐induced hearing loss in children." The Laryngoscope 102.6 (1992): 645-655
[4]	Daniel, Eileen. "Noise and hearing loss: a review." Journal of School Health 77.5 (2007): 225-231.
[5]	Levey, Sandra, et al. "The Effects of Noise-Induced Hearing Loss on Children and Young Adults." Contemporary Issues in Communication Science & Disorders 39 (2012).
[6]	Peng, Jian-Hua, Ze-Zhang Tao, and Zhi-Wu Huang. "Risk of damage to hearing from personal listening devices in young adults." Journal of Otolaryngology 36.3 (2007).
[7]	Sliwinska-Kowalska, Mariola, and Adrian Davis. "Noise-induced hearing loss." Noise and Health 14.61 (2012): 274.
[8]	WHO, World Health Organization. “Make listening safe”. 2015.
[9]	Harrison, Robert V. "The prevention of noise induced hearing loss in children." International journal of pediatrics 2012 (2012).
[10]	Yaremchuk, Kathleen, et al. "Noise level analysis of commercially available toys." International journal of pediatric otorhinolaryngology 41.2 (1997): 187-197.
[11]	EC2009, 2009/48/EC “European Comission Toys Safety Directive”
[12]	EN71, EN71-1: 2014 “Safety of toys - Part 1: Mechanical and physical properties”.
[13]	FHSA, Federal Hazard Safety Act, 16 CFR 1500.47 “Method for determining the sound pressure level produced by toy caps”.
[14]	Buelow, Robert J. The Design Considerations of an Anechoic Chamber. No. 1999-01-1832. SAE Technical Paper, 1999.
[15]	Ressl, Marc, and Pablo E. Wundes. "Design of an acoustic anechoic chamber for application in hearing aid research." Proceedings of the 11 th WSEAS International Conference on Acoustics & Music: Theory & Applications ATMA. 2010.
[16]	Rusz, Roman. "Design of a fully anechoic chamber." (2015).
[17]	Nielsen, MB Schøyen. "Anechoic vs. Semi Anechoic Rooms."
[18]	ISO 7779, EN ISO 7779: 2010 “Acoustics. Measurement of airborne noise emitted by information technology and telecommunications equipment”.
[19]	Fahy, Frank J., and Vincent Salmon. "Sound intensity." (1990): 2044-2045.
[20]	Pavic, G. "Measurement of sound intensity." Journal of Sound Vibration 51 (1977): 533-545.
[21]	Royster, H., et al. "Sound measurement: Instrumentation and noise descriptors." The noise manual 5.41-98 (2003).
[22]	ISO 3744, EN ISO 3744: 2010 “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”.
[23]	Rozli, Z., & Zulkarnain, Z. “Noise control using coconut coir fiber sound absorber with porous layer backing and perforated panel”. American Journal of Applied Sciences, 7 (2), 2010, pp. 260-264.
[24]	Borelli, D., and C. Schenone. "Effect of perforated facing on sound absorption of polyester fibre material." Applied Acoustics 66 (2005): 1383-1398.
[25]	Flimel, M. (2014). Vibro-Acoustic Comfort Assessment Methodology of Residential Buildings in Urban Environment. In Advanced Materials Research (Vol. 1041, pp. 428-431). Trans Tech Publications.
[26]	Flimel, M., & Dupláková, D. (2017). Acoustical comfort in building interior during musical production in town residential area of locality. Noise & Vibration Worldwide, 48 (11), 154-158.
[27]	Flimel, M., & Dupláková, D. (2016). Vibro-acoustical certification management of residential houses. Saarbrücken: LAP Lambert Academic Publishing, 103 p. ISBN 978-3-659-93619-7.
[28]	Jacobsen, Finn, and Hans-Elias de Bree. "A comparison of two different sound intensity measurement principles." The Journal of the Acoustical Society of America 118.3 (2005): 1510-1517.

Cite This Article

Plain Text BibTeX RIS

APA Style

Shulun Mak, Chiho Li, Waifan Tang, Chiwing Lai. (2020). Design and Verification of Acoustic Room for Consumer Product Safety Testing. Engineering and Applied Sciences, 5(3), 50-55. https://doi.org/10.11648/j.eas.20200503.11

Copy | Download

ACS Style

Shulun Mak; Chiho Li; Waifan Tang; Chiwing Lai. Design and Verification of Acoustic Room for Consumer Product Safety Testing. Eng. Appl. Sci. 2020, 5(3), 50-55. doi: 10.11648/j.eas.20200503.11

Copy | Download

AMA Style

Shulun Mak, Chiho Li, Waifan Tang, Chiwing Lai. Design and Verification of Acoustic Room for Consumer Product Safety Testing. Eng Appl Sci. 2020;5(3):50-55. doi: 10.11648/j.eas.20200503.11

Copy | Download

@article{10.11648/j.eas.20200503.11,
  author = {Shulun Mak and Chiho Li and Waifan Tang and Chiwing Lai},
  title = {Design and Verification of Acoustic Room for Consumer Product Safety Testing},
  journal = {Engineering and Applied Sciences},
  volume = {5},
  number = {3},
  pages = {50-55},
  doi = {10.11648/j.eas.20200503.11},
  url = {https://doi.org/10.11648/j.eas.20200503.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.eas.20200503.11},
  abstract = {Sound Producing Toys consists the sound emitting characteristics to attract children’s attention, such as emitting music or simulating animal’s call. The excess sound pressure level (SPL) could damage the human hearing. The international toy safety standards are established to limit the maximum sound pressure level emitted from the product. The Chief Executive of the Hong Kong SAR established the Task Force on Economic Challenges (TFEC) on October 2008. In early 2009, the TFEC has identified six economic areas where Hong Kong enjoys clear advantages. The Six Industries are (i) testing, inspection and certification (TIC), (ii) medical services, (iii) innovation and technology, (iv) cultural and creative industries, (v) environmental industries, and (vi) educational services. The Open University of Hong Kong is offering the undergraduate degree programmes in testing and certification. For the teaching and research purpose, an acoustic room was built to support the areas of sound pressure level measurement in the Open University of Hong Kong. The acoustic room was primarily designed to serve the sound pressure level measurement of the consumer products, including toys and children’s products and gain the Hong Kong Laboratory Accreditation Scheme (HOKLAS) with reference to ISO/IEC 17025. This paper describes the flow of design, consideration of design factors, verification method, applications and limitations of acoustic chamber.},
 year = {2020}
}

Copy | Download

TY - JOUR
T1 - Design and Verification of Acoustic Room for Consumer Product Safety Testing
AU - Shulun Mak
AU - Chiho Li
AU - Waifan Tang
AU - Chiwing Lai
Y1 - 2020/06/03
PY - 2020
N1 - https://doi.org/10.11648/j.eas.20200503.11
DO - 10.11648/j.eas.20200503.11
T2 - Engineering and Applied Sciences
JF - Engineering and Applied Sciences
JO - Engineering and Applied Sciences
SP - 50
EP - 55
PB - Science Publishing Group
SN - 2575-1468
UR - https://doi.org/10.11648/j.eas.20200503.11
AB - Sound Producing Toys consists the sound emitting characteristics to attract children’s attention, such as emitting music or simulating animal’s call. The excess sound pressure level (SPL) could damage the human hearing. The international toy safety standards are established to limit the maximum sound pressure level emitted from the product. The Chief Executive of the Hong Kong SAR established the Task Force on Economic Challenges (TFEC) on October 2008. In early 2009, the TFEC has identified six economic areas where Hong Kong enjoys clear advantages. The Six Industries are (i) testing, inspection and certification (TIC), (ii) medical services, (iii) innovation and technology, (iv) cultural and creative industries, (v) environmental industries, and (vi) educational services. The Open University of Hong Kong is offering the undergraduate degree programmes in testing and certification. For the teaching and research purpose, an acoustic room was built to support the areas of sound pressure level measurement in the Open University of Hong Kong. The acoustic room was primarily designed to serve the sound pressure level measurement of the consumer products, including toys and children’s products and gain the Hong Kong Laboratory Accreditation Scheme (HOKLAS) with reference to ISO/IEC 17025. This paper describes the flow of design, consideration of design factors, verification method, applications and limitations of acoustic chamber.
VL - 5
IS - 3
ER -

Copy | Download

Author Information

Shulun Mak

School of Science and Technology, The Open University of Hong Kong, Ho Man Tin, Kowloon, Hong Kong SAR, China
Chiho Li

School of Science and Technology, The Open University of Hong Kong, Ho Man Tin, Kowloon, Hong Kong SAR, China
Waifan Tang

School of Science and Technology, The Open University of Hong Kong, Ho Man Tin, Kowloon, Hong Kong SAR, China
Chiwing Lai

School of Science and Technology, The Open University of Hong Kong, Ho Man Tin, Kowloon, Hong Kong SAR, China

Download PDF

Sections

Plain Text BibTeX RIS

APA Style

Shulun Mak, Chiho Li, Waifan Tang, Chiwing Lai. (2020). Design and Verification of Acoustic Room for Consumer Product Safety Testing. Engineering and Applied Sciences, 5(3), 50-55. https://doi.org/10.11648/j.eas.20200503.11

Copy | Download

ACS Style

Shulun Mak; Chiho Li; Waifan Tang; Chiwing Lai. Design and Verification of Acoustic Room for Consumer Product Safety Testing. Eng. Appl. Sci. 2020, 5(3), 50-55. doi: 10.11648/j.eas.20200503.11

Copy | Download

AMA Style

Shulun Mak, Chiho Li, Waifan Tang, Chiwing Lai. Design and Verification of Acoustic Room for Consumer Product Safety Testing. Eng Appl Sci. 2020;5(3):50-55. doi: 10.11648/j.eas.20200503.11

Copy | Download

@article{10.11648/j.eas.20200503.11,
  author = {Shulun Mak and Chiho Li and Waifan Tang and Chiwing Lai},
  title = {Design and Verification of Acoustic Room for Consumer Product Safety Testing},
  journal = {Engineering and Applied Sciences},
  volume = {5},
  number = {3},
  pages = {50-55},
  doi = {10.11648/j.eas.20200503.11},
  url = {https://doi.org/10.11648/j.eas.20200503.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.eas.20200503.11},
  abstract = {Sound Producing Toys consists the sound emitting characteristics to attract children’s attention, such as emitting music or simulating animal’s call. The excess sound pressure level (SPL) could damage the human hearing. The international toy safety standards are established to limit the maximum sound pressure level emitted from the product. The Chief Executive of the Hong Kong SAR established the Task Force on Economic Challenges (TFEC) on October 2008. In early 2009, the TFEC has identified six economic areas where Hong Kong enjoys clear advantages. The Six Industries are (i) testing, inspection and certification (TIC), (ii) medical services, (iii) innovation and technology, (iv) cultural and creative industries, (v) environmental industries, and (vi) educational services. The Open University of Hong Kong is offering the undergraduate degree programmes in testing and certification. For the teaching and research purpose, an acoustic room was built to support the areas of sound pressure level measurement in the Open University of Hong Kong. The acoustic room was primarily designed to serve the sound pressure level measurement of the consumer products, including toys and children’s products and gain the Hong Kong Laboratory Accreditation Scheme (HOKLAS) with reference to ISO/IEC 17025. This paper describes the flow of design, consideration of design factors, verification method, applications and limitations of acoustic chamber.},
 year = {2020}
}

Copy | Download