WINWALL TECHNOLOGY PTE.LTD was founded in 1992 in Singapore. It is a leading third-party testing and certification agency in Asia for building façades and enclosures systems. The company holds SAC accreditation from Singapore and its test reports are internationally recognized. WINWALL specializes in providing authoritative testing and technical services for the airtightness, water resistance, wind pressure resistance, structural safety, and fire performance of façades, windows, and enclosures. With over a thousand projects completed, the company’s business covers Singapore, Malaysia, Vietnam, India, China, and other countries and regions. WINWALL also has a joint venture laboratory in India, offering reliable third-party performance validation and safety assurance for global construction projects through its expertise and rigorous services.

GZ DP Anechoic Co., Ltd. is composed of a team of acoustic experts and engineers with years of experience in acoustic technology research and application. The company owns office buildings and factories, with an acoustic laboratory that meets CNAS standards, enabling them to monitor their product’s acoustic performance and provide external acoustic testing services. Through continuous innovation and hard work, GZ DP has developed high-precision, environmentally friendly, durable, aesthetically pleasing, and technologically advanced acoustic laboratory products. GZ DP’s affiliated company, GZ DP Acoustic Technology Research Co., Ltd., is a high-tech company specializing in the research and development of acoustic testing instruments. The seamless integration of GZ DP’s acoustic environments with GZ DP’s testing instruments enables them to offer complete solutions for acoustic laboratories.

keyword:Acoustic Laboratory; Anechoic Room; Hemi-Anechoic Room / Semi-Anechoic Room; Full Anechoic Room / Full Soundproof Room; Precision Grade Anechoic Room; Precision Grade Hemi-Anechoic Room; Precision Grade Full Anechoic Room; Soundproof Room (Sound Isolation Room, Soundproof Cabin, Quiet Room); Soundproof Box / Sound Isolation Box; Reverberation Room; Listening Room (Audiology Room, Sound Testing Room); No Echo Room (Silent Room); Quiet Room (Noise Reduction Room); Noise Room (Soundproof Room); Airborne Sound Insulation Laboratory; Floor Impact Sound Insulation Laboratory; Automotive NVH Laboratory; Acoustic Measurement Instruments; Vibration Measurement Instruments; Hemi-Anechoic Room Solutions; Acoustic Testing Equipment; Anechoic Room Manufacturers; Acoustic Engineering; Acoustic Research Institutes; Hemi-Anechoic Room Design; Full Anechoic Room Design; Online Soundproof Room.

1. Project Scope

Airborne Sound Insulation Laboratory;

2. Applicable Standards

(1) GBT 19889.1-2005 Acoustics — Measurement of sound insulation of buildings and building elements — Part 1: Requirements for laboratory test facilities with suppressed lateral sound transmission;

(2) GBT 19889.3-2005 Acoustics — Measurement of sound insulation of buildings and building elements — Part 3: Laboratory measurements of airborne sound insulation of building elements.

3. Main Specifications and Project Content

When the environmental noise level Len(A) ≤ 65 dB(A), with no abnormal interference (such as ground pounding, piling, impact, hydraulic forklifts, and cranes moving back and forth), and with all indoor equipment turned off, the background noise level Lgn(A) ≤ 30 dB(A).

4. Contact Information

Phone: 400-682-3698
International: +6011 5135 5819

For more information, please feel free to contact us.