Kuyedzwa kweDolomite blockingbvunzo yekusarudza muEuro EN 149:2001+A1:2009.
Mask inoiswa muguruva redolomite rine saizi ye0.7 ~ 12μm uye huwandu hweguruva hunosvika 400± 100mg/m3. Ipapo guruva rinoseferwa kuburikidza nemasiki nechiyero chekufema chemarita maviri panguva imwe chete. Kuedzwa kunoenderera mberi kusvika kuunganidzwa kweguruva panguva imwe chete kwasvika 833mg · h/m3 kana kuti kuramba kwakanyanya kwasvika pahuwandu hwakatarwa.
Iyokusefa uye kuramba kufema kwemasikizvakabva zvaedzwa.
Mamasiki ese anopasa bvunzo yekudzivirira dolomite anogona kuratidza kuti kuramba kufema kwemamasiki ari kushandiswa kunokwira zvishoma nezvishoma nekuda kwekudzivirira guruva, zvichiita kuti vashandisi vanzwe vakasununguka kupfeka uye nguva yakareba yekushandisa chigadzirwa.
Nguva yekutumira: Kurume-29-2023