Ikizamini cyo guhagarika Dolomiteni ikizamini kidahwitse muri Euro EN 149: 2001 + A1: 2009.
Mask ihura numukungugu wa dolomite ufite ubunini bwa 0.7 ~ 12μm kandi umukungugu wuzuye ugera kuri 400 ± 100mg / m3. Noneho ivumbi ryungururwa binyuze muri mask ku kigero cyo guhumeka cya litiro 2 icyarimwe. Ikizamini kirakomeza kugeza igihe kwirundanya umukungugu kumwanya umwe bigeze kuri 833mg · h / m3 cyangwa kurwanya impinga bigera ku giciro cyagenwe.
Uwitekakuyungurura no kurwanya ubuhumekero bwa maskbarageragejwe.
Masike zose zatsinze ikizamini cyo guhagarika dolomite zirashobora kwerekana ko kurwanya ubuhumekero bwa masike mugukoresha nyabyo bizamuka buhoro buhoro bitewe no guhagarika umukungugu, bityo bigaha abakoresha ibyiyumvo byoroshye byo kwambara no gukoresha igihe kirekire cyo gukoresha ibicuruzwa.
Igihe cyo kohereza: Werurwe-29-2023