Isitholi se-Mask bacterial filtration performance (BFE)

Izinkomba zokusebenza eziyinhloko zomtshina wemaski we-DRK-1000 we-Bacterial Filtration Efficiency (BFE) azifezi nje kuphela izidingo ze-APPENDIX B Indlela Yokuhlola I-Bacterial Filtration Efficiency (BFE) b.1.1.1 Kuzidingo Zobuchwepheshe Zamamaski Okuhlinzwa Kwezokwelapha yy0469-2011, Futhi futhi ngokuhambisana nezidingo ze-American Society for Testing Materials ASTMF2100, ASTMF2101, amazinga e-European EN14683, futhi kulesi sisekelo, ukuthuthukiswa kokusha, ukusetshenziswa kwendlela yegesi embaxambili ngesikhathi esifanayo indlela yesampula yokuqhathanisa, kuthuthukisa ukunemba kwesampula. Ifanele ukuhlolwa kokusebenza kokucwenga kwamagciwane kahle kwemaski ngeminyango yokuqinisekisa i-metrological, izikhungo zocwaningo lwesayensi, abakhiqizi bemaski neminye iminyango efanele.

Izici zomkhiqizo:

I-1, uhlelo lokuhlola ingcindezi engalungile, ukuqinisekisa ukuphepha kwabaqhubi;

2, Iphampu ye-peristaltic eyakhelwe ngaphakathi, i-Negative pressure cabinet, A, B two way six level Andersen; Usayizi wepompo we-Peristaltic ungasethwa;

3, Special microbial aerosol generator amagciwane ebusuku spray flow usayizi ingasethwa, umphumela omuhle atomization;

4, Kushunyekwe isilawuli se-microcomputer esinesivinini esikhulu sezimboni; 10.4 “isikrini sokuthinta sombala wezinga lemboni esigqama kakhulu;

5, isikhombimsebenzisi se-USB, sisekela ukudluliswa kwedatha yediski ye-U;

6, ukukhanyisa okwakhelwe ngaphakathi kweKhabhinethi kokukhanya okuphezulu; Iswishi yokuvikela ukuvuza eyakhelwe ngaphakathi, ukuvikela ukuphepha komsebenzisi;

7. Ungqimba lwangaphakathi lwekhabhinethi lwenziwe ngensimbi engagqwali iyonke, futhi ungqimba lwangaphandle lufafazwa ngepuleti eligoqiwe elibandayo lepulasitiki. Izendlalelo zangaphakathi nezingaphandle ziboshiwe futhi zinolaka.

8, Front switch uhlobo glass umnyango, kulula ukubona ukusebenza kwabasebenzi laboratory;

9, ubakaki okhiphekayo, ukuphakama kubakaki kuyalungiseka; Sekela futhi uhambise abalingisi abakabili.