Mayeso oletsa dolomite - EN149

Mayeso oletsa dolomitendi mayeso osankhidwa mu Euro EN 149:2001+A1:2009.

Chigobacho chimayikidwa pa fumbi la dolomite lokhala ndi kukula kwa 0.7 ~ 12μm ndipo kuchuluka kwa fumbi kumafika pa 400± 100mg/m3. Kenako fumbi limasefedwa kudzera mu chigobacho pa liwiro loyerekeza la malita awiri nthawi iliyonse. Kuyesaku kumapitilira mpaka fumbi litasonkhana pa nthawi iliyonse litafika pa 833mg · h/m3 kapena kukana kwakukulu kufika pamtengo womwe watchulidwa.

Thekusefa ndi kukana kupuma kwa chigobakenako anayesedwa.

Ma masks onse omwe amapambana mayeso oletsa dolomite amatha kutsimikizira kuti kukana kupuma kwa masks omwe amagwiritsidwa ntchito kwenikweni kumakwera pang'onopang'ono chifukwa cha kutsekeka kwa fumbi, motero kupatsa ogwiritsa ntchito kumva bwino kuvala komanso nthawi yayitali yogwiritsira ntchito zinthu.