Cov huab cua permeability tester yog tsim thiab tsim rau cov hnab ntawv cement, ntawv hnab ntawv, ntawv cable, ntawv luam ntawv thiab ntawv lim ntawv, thiab lwm yam, los ntsuas qhov loj ntawm nws cov huab cua permeability, qhov ntsuas yog tsim rau huab cua permeability ntawm 1 × 10-2 ~ 1 × 102um / (pa.s), tsis yog rau daim ntawv nrog loj ntxhib nto.
Ntawd yog, nyob rau hauv cov xwm txheej tshwj xeeb, chav tsev lub sij hawm thiab chav tsev siab sib txawv, chav tsev ntawm daim ntawv los ntawm qhov nruab nrab cua ntws.Ntau hom ntawv, xws li cov hnab ntawv cement, ntawv hnab ntawv, ntawv cable, ntawv luam ntawv thiab ntawv lim ntawv, yuav tsum ntsuas nws cov permeability, qhov ntsuas no yog tsim thiab tsim rau txhua hom ntawv.Qhov ntsuas no haum rau huab cua permeability ntawm 1 × 10-2 ~ 1 × 102um / (pa. S), tsis haum rau saum npoo ntawm daim ntawv loj.
Lub ntsuas pa ua pa ua tau raws li QB / T1667-98 "Paper thiab cardboard breathability Tester", GB / T458-1989 "Paper thiab cardboard breathability determination Method" (Schobol).Iso1924/2-1985 QB/T1670-92 thiab lwm yam qauv.
Xa koj cov lus rau peb:
Post lub sij hawm: Feb-23-2022