Ngwa na njirimara nke mita iku ume Iso1924/2-1985

A na-emepụta ihe nleba anya nke ikuku na-emepụta maka akwụkwọ ciment bag, akwụkwọ akpa akwụkwọ, akwụkwọ USB, akwụkwọ mpempe akwụkwọ na akwụkwọ nzacha ụlọ ọrụ, wdg, iji tụọ nha nke ikuku ikuku ya, ngwá ọrụ ahụ kwesịrị ekwesị maka ikuku ikuku n'etiti 1 ×. 10-2 ~ 1 × 102um / (pa.s), ọ bụghị maka akwụkwọ ahụ nwere nnukwu ihe siri ike.

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Nke ahụ bụ, n'okpuru ọnọdụ ndị a kapịrị ọnụ, oge nkeji na ihe dị iche iche nrụgide, akụkụ nke mpempe akwụkwọ site na nkezi ikuku. Ọtụtụ ụdị akwụkwọ, dị ka simenti bag akwụkwọ, akwụkwọ akpa akwụkwọ, cable akwụkwọ, oyiri akwụkwọ na ulo oru nzacha akwụkwọ, mkpa tụọ permeability ya, ngwá ọrụ e mere na arụpụtara maka ụdị ọ bụla nke akwụkwọ. Nke a na ngwá bụ adabara ikuku permeability n'etiti 1 × 10-2 ~ 1 × 102um / (pa. S), adịghị adabara n'elu nke nnukwu ike ike akwụkwọ.

Igwe ume iku ume kwekọrọ na QB/T1667-98 “Paper and cardboard breathability Tester”, GB/T458-1989 “Paper and cardboard breathability Method” (Schobol). Iso1924/2-1985 QB/T1670-92 na ụkpụrụ ndị ọzọ dị mkpa.

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Ajuju UGBUA
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Oge nzipu: Feb-23-2022
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