The mpweya permeability tester lakonzedwa ndi chopangidwa kwa simenti thumba pepala, thumba thumba pepala, chingwe pepala, kukopera pepala ndi mafakitale fyuluta pepala, etc., kuyeza kukula kwa mpweya permeability, chida ndi oyenera mpweya permeability pakati 1 × 10-2 ~ 1 × 102um/ (pa.s), osati pepala ndi lalikulu akhakula pamwamba.
Ndiko kuti, pansi pa zikhalidwe zotchulidwa, nthawi ya unit ndi kusiyana kwa mphamvu ya unit, gawo la pepala kupyolera mumayendedwe a mpweya.Mitundu yambiri ya mapepala, monga pepala la thumba la simenti, thumba la thumba, pepala lachingwe, pepala lojambula ndi pepala la mafakitale, liyenera kuyeza kupezeka kwake, chida ichi chapangidwa ndikupangidwira mapepala amitundu yonse.Chida ichi ndi oyenera mpweya permeability pakati 1 × 10-2 ~ 1 × 102um / (pa. S), si oyenera padziko lalikulu akhakula pepala.
The breathability mita ikugwirizana ndi QB/T1667-98 "Paper ndi makatoni breathability Tester", GB/T458-1989 "Mapepala ndi makatoni breathability determination Njira" (Schobol).Iso1924/2-1985 QB/T1670-92 ndi miyezo ina yoyenera.
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Nthawi yotumiza: Feb-23-2022