SGS Shunde Branch (Tongbiao Standard Technical Service Co., Ltd. Shunde Branch, a wholly-owned subsidiary of Tongb Standard Technical Service Co., Ltd.) is an internationally renowned third-party inspection, testing, and certification institution. Established on September 20, 200, its business scope includes, upon client entrustment, undertaking inspection, testing, examination, appraisal, supervision, cargo inspection, evaluation, and other technical services; other related to standardization and product appraisal; management system certification, product certification, service certification, and certification training; and participation in the construction of international standards and testing laboratories

Recently, after a public bidding and review process, Guangzhou DP Artificial Environment Technology Co., Ltd. successfully won the bid for the air sound insulation room, impact insulation room, and reverberation room project of SGS Shunde Branch. This successful bid is a full affirmation and high recognition of our company's technical strength, product quality and project delivery capabilities by an authoritative third-party testing institution.

Guangzhou DP Anechoic T&E Co.,Ltd.is composed of a group of domestic and foreign acoustic experts and professional engineers who have been engaged in various acoustic technology research for many years and have rich theoretical and practical experience. It has its own office buildings and factories, and the factory has acoustic laboratories in line with CNAS standards, which can monitor the acoustic technical indicators of its own products and carry out acoustic testing services. Through the hard work and continuous innovation and development of Danpin team, the acoustics laboratory designed, produced and installed by Danpin has products with accurate technical indicators, green environmental protection, durable quality, beautiful appearance and high scientific and technological content.GZ DC Acoustic Technology Research Co., Ltd., an affiliated company of GZ DP, is a high - tech company specialized in the research and development of acoustic testing instruments. The acoustic environment provided by DP can be perfectly and seamlessly integrated with the testing instruments of DC. Therefore, it can offer a complete solution for acoustic laboratories.

I.Procurement content

（1）Airborne sound insulation room;

（2）Impact sound insulation room;

（3）Reverberation room

（Airborne sound insulation room）

（Impact sound insulation room）

（Reverberation room）

II.According to the standard

GB/T 19889.1-2005 Acoustic insulation of building elements and building construction - Measurement in laboratories - 1: Requirements for laboratory test facilities for sound transmission with lateral transmission suppressed;

GB/T 19889.3-2005 Acoustics - Measurement of sound insulation in buildings and building elements - Part 3 Laboratory measurement of airborne sound insulation of building elements.

GBT19889.6-2005 Laboratory measurement of impact sound insulation of floors and ceilings in buildings and building elements, Part ; requirements of ASTM E90-09(2016), ASTM E413-22, etc.;

GBT 20247-2006 Acoustic reverberation room sound absorption measurement;

Requirements of JJF 1143-2006 "Calibration specification for acoustic characteristics of reverberation rooms";

GB/T 6881.1-2002 "Determination of sound power level noise sources by acoustic pressure method".

III.Main indicators and project contents

Airborne sound insulation room: When the ambient noise Len(A)≤60dB(A) and there are no abnormal interferences around as floor pounding, pile driving, impact, hydraulic forklift movement, or other abnormal situations, the background noise Lgn(A)≤20dB(A), and indoor low-frequency reverberation time T(s) satisfies: 1s≤T≤2(V/50)⅔s

Impact Sound Insulation Room Its sound insulation performance meets the following technical indicators: the lateral sound insulation index △Lp≥ 55 dB(A); the background noise level Lgn(A)≤25dB(A); the indoor low-frequency reverberation time T(s) shall comply with the formula: 1s ≤ T ≤ 2(V/50) s.

Reverberation room: Ambient noise Len(A)≥60dB(A) with no abnormal interference around such as floor pounding, pile, impact, hydraulic forklifts and overhead cranes moving back and forth, etc., the background noise Lgn(A)≤20dB(A); Sound pressure uniformity 100Hz≤f1/3octave≤315Hz, Sm≤3dB; f1/3octave≥400Hz, Sm≤15dB; Reverberation time: Within the test frequency range, the reverberation time satisfies T60>V/S;

Meet the indoor background noise value Lgn(A), sound insulation, sound absorption and noise reduction, dimensions, and other relevant details agreed upon by both parties

Contact Information

International:+65 91016778

WhatsApp:+6011 5135 5819

China Hotline: 400-682-3698 、 400-604-8982

Email:info@thunderstar.cn 、info@thunderstar.sg 

For more information, please feel free to contact us.