Rock wool core sandwich panel

steel facingwallsound-absorbing

Acous is sound absorbing sandwich wall panels, first choice for noise reduction in industrial buildings, safeguard the health and safety of employees. The patented half punching technology is adopted, which not only improves the effect of noise reduction, but also has the same strength as ordinary composite boards. 4.1 What it means from 62.4dB lower to 47.2dB ? Industrial Noise→Convalescent environment GB 3096-2008 Sound Environment Quality Standard—Table 1 Environmental Noise Limits Unit: dB(A) 1、Noise impairs hearing organs：Tinnitus, hearing deviation, noise deafness. 2、Noise causes a variety of diseases: central nervous system, cerebral cortex imbalance. Headaches, dizziness, insomnia and general fatigue. Still can make heart rate is accelerated, heart rate is irregular, blood pressure rises. 3、The influence of noise on normal life: studies show that 45dB noise begins to affect normal people's sleep. The noise near the factory is sometimes as high as 70~80dB, which will affect people's conversation, lectures and meetings. 4、Noise reduces labor productivity: in a noisy environment, people are irritable, easy to fatigue, and slow reaction. The effect of noise on precision processing or mental work is more obvious. When the noise of a switchboard is reduced from 50dB to 30dB, the error rate can be reduced by 42%. In addition, due to the psychological effect of noise, distracting people's attention, but also easy to cause industrial accidents. • 70dB：The maximum noise that the EPA d etermines humans can tolerate (without hearing loss, sleep disturbances, anxiety , learning disabilities, etc.)