Umhloli we-air permeability wenzelwe kwaye wenziwa kwiphepha le-samente, isikhwama sephepha, i-cable paper, ikopi yephepha kunye nephepha lokucoca i-industrial, njl. 10-2 ~ 1 × 102um / (pa.s), kungekhona iphepha elinomphezulu omkhulu orhabaxa.
Okokuthi, phantsi kweemeko ezichaziweyo, ixesha leyunithi kunye nokwahlukana koxinzelelo lweyunithi, indawo yeyunithi yephepha ngomyinge wokuhamba komoya.Iindidi ezininzi zephepha, ezifana nephepha le-samente, isikhwama sephepha, i-cable paper, ikopi yephepha kunye nephepha lokucoca i-industrial, kufuneka lilinganise ukugqithiswa kwayo, esi sixhobo siyilwe kwaye senzelwe zonke iintlobo zephepha.Esi sixhobo silungele ukunyanzeliswa komoya phakathi kwe-1 × 10-2 ~ 1 × 102um / (pa. S), ayifanelekanga kumphezulu wephepha elikhulu elirhabaxa.
Imitha yokuphefumula ihambelana ne-QB / T1667-98 "Iphepha kunye nekhadibhodi yokuphefumula iTester", i-GB / T458-1989 "Iphepha kunye nekhadibhodi yokumisela ukuphefumula ukuphefumula Indlela" (Schobol).I-Iso1924/2-1985 QB/T1670-92 kunye neminye imigangatho efanelekileyo.
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Ixesha lokuposa: Feb-23-2022