Scope thiab cov qauv ntawm cov tshuab ziab khaub ncaws kuaj
Melt blown fabric yog ib yam khoom siv nuclear siv los lim cov kab mob hauv lub ntsej muag. Lub npog ntsej muag kho mob tau muab faib ua peb txheej, nrog rau cov ntaub nplaum yaj ua cov txheej hauv nruab nrab. Nws muaj zog lim, tiv thaiv, thiab thermal rwb thaiv tsev, uas tuaj yeem ua lub luag haujlwm hauv kev ua kom tsis muaj menyuam thiab cais cov kab mob. Yog li ntawd, kev ntsuam xyuas cov ntaub nplaum yaj ua lub luag haujlwm tseem ceeb hauv kev tswj qhov zoo ntawm lub hood. Yog li, yuav ua li cas thiaj li kuaj xyuas cov ntaub nplaum nplaum?
Cov khoom kuaj muaj xws li: cov teeb meem pom kev ua haujlwm zoo (PFE), cov kab mob pom kev ua haujlwm zoo (BFE), qhov ntev ntawm cov pob txha tawg, lub zog tawg, qhov ntev ntawm cov pob txha elongation, transverse pob txha elongation, thermal resistance, permeability, chav ntim sib txawv, zoo li, dav, thiab microphysical ntsuas.
1. Lim efficiency
Filtering efficiency yog qhov taw qhia tseem ceeb rau kev ntsuas qhov zoo ntawm lub qhov ncauj qhov ntswg. Qhov no kuj yog ib qho tseem ceeb ntawm cov qauv zoo rau cov tshuab ziab khaub ncaws, yog li xa mus rau cov qauv tsim, cov kab mob pom kev ua haujlwm ntawm lub npog ntsej muag yuav tsum tsis pub tsawg dua 95%, thiab qhov pom kev ua haujlwm ntawm oily hais nrog siab particle filtration efficiency. yuav tsum tsis pub tsawg tshaj 90%.
1. Kuj tseem ceeb
Thaum hnav lub npog ntsej muag, nws cuam tshuam ua pa thiab cuam tshuam rau lub cev. Yog li qhov kev tiv thaiv ntawm cov ntaub nplaum yaj ntawm lub npog ntsej muag txiav txim siab qhov kev nplij siab thaum hnav lub npog ntsej muag. Cov ntsuas pom zoo yog tias qhov kev tiv thaiv yuav tsum tsawg dua lossis sib npaug rau 350Pa thiab qhov ua pa tsis ua pa yuav tsum tsawg dua lossis sib npaug rau 250Pa
Cov qauv xeem:
GB/T 32610-2016 (Technical Specification for Occupational Protective Masks).
GB 2626-2019 (Nws tus kheej nqus lim hom anti particle respirator).
GB19083-2010 (Technical Requirements for Protective Covers).
YY0469-2011 (Technical Requirements for Medical and Surgical Masks).
EN 149-2001+A1-2009 (EU Protective Masks Requirements).
EN14683:2019+AC: 2019 (EU Medical Mask Requirements).
