Which company should I go to for sound absorption performance testing? Baijian.com is a comprehensive collective owned research institute that integrates testing, inspection, analysis, testing, technical consulting, and other services with CMA and other qualifications recognized by the national metrology certification. It is also rated as a national high-tech enterprise and can issue testing reports within 7-15 working days Testing items include sound absorption performance testing, etc Testing standards

CB 20113-2014 Acoustic performance parameters of sound-absorbing tiles

DIN EN 1793-1997 Road traffic noise reduction devices - Test methods for acoustic performance determination - Part 1: Intrinsic performance of sound absorption

GB/T 16731-1997 Classification of sound absorption performance of building sound-absorbing products

GB/T 19884-2005 Acoustics - On site determination of insertion loss of various outdoor sound barriers

GB/T 19887-2005 Acoustic movable barrier sound attenuation On site measurement

HG/T 4383-2012 Sound Absorbing Cone

T/CAEPI 17-2019 Array Silencer Technical Requirements

1. BAIJIAN has received a commission from the customer and has been rated as a national high-tech enterprise with strong credibility and a wide testing range 2. Possess excellent testing technical capabilities and a sound laboratory management system 3. Multiple laboratory branches nationwide, able to quickly respond to customer needs 4. The service scope covers many fields such as plastics, rocks, metals, polymers, energy, electrical components, biology, raw materials, chemical raw materials, chemical engineering, materials, formula analysis, medicine, food, textiles, leather, environment, and machine testing 5. The testing team has complete testing instruments and can conduct comprehensive testing on samples 6. All experiments focus on protecting the privacy of customers and sign confidentiality agreements 7. Short detection time, low cost, accurate data, and scientific reliability 8. You can send samples for testing and also support on-site sampling nationwide The test report can be issued within 9-15 days