Niaj hnub no, suab nrov barrier manufacturers qhia ib co ntsiab lus hais txog ntau yam kev ua tau zoo ntsuas ntawm
suab barrier khoom.Cov kev qhia dav dav ntawm cov ntaub ntawv suab barrier yuav tsum ua tau raws li
ntsig txog kev lag luam khoom qauv.
Lub suab absorption Performance index ntawm lub suab barrier khoom:
Kev ua tau zoo acoustic, ua haujlwm zoo suab thiab txo suab nrov, suab absorbing kev ua haujlwm
Cov khoom siv suab nrov yog ntsuas raws li GBJ47-1983 "Reverberation Room Method Sound
Absorption Coefficient Measurement Specification ", ntawm 125HZ, 250HZ, 500HZ, 1000HZ, 2000HZ thiab 4000HZ
zaus Cov coefficients yuav tsum tsis pub tsawg tshaj 0.25, 0.40, 0.80, 0.95, raws li.
Suab barrier Performance index ntawm suab barrier khoom:
Raws li GBJ75-1984 "Specifications for Measurement of Sound Insulation in Buildings", lub suab
rwb thaiv tsev ntawm lub suab barriers yuav tsum tsis txhob tsawg tshaj li 30dB.
Performance index ntawm snoring barrier cov ntaub ntawv:
Nws yuav tsum yog qib A raws li "Txoj Kev Sib Cais Ntawm Kev Ua Haujlwm ntawm Lub Tsev
Khoom siv".
Freeze-thaw kuj ntsuas ntawm snoring barrier cov ntaub ntawv:
Kev ua haujlwm khov-thaw kuj yuav tsum tau ua raws li txoj kev 3.2.4
khov-thaw kuj nyob rau hauv 149-2003 "expanded polystyrene board nyias plaster sab nrauv phab ntsa thermal
rwb thaiv tsev system ".Tom qab 30 lub voj voog, cov qauv kuaj yuav tsum tsis pub muaj qhov tawg, tawg thiab txheej
tsim.
Post lub sij hawm: Mar-17-2020