I-Hydroxyethyl methylcellulose (HEMC) iyi-polymer esetshenziswa kabanzi ezimbonini ezahlukahlukene, okuhlanganisa nemithi, ukudla, izimonyo, kanye nokwakha. Iyaziswa ngezakhiwo zayo zokujiya, ukuhlanganisa, ukwakha ifilimu, kanye nokuzinzisa. Naphezu kokusetshenziswa kwayo kabanzi, ukuqinisekisa ukuphepha ngesikhathi sokuphathwa nokusetshenziswa kwayo kubalulekile. Nazi izinyathelo zokuphepha eziphelele zokusebenzisa i-hydroxyethyl methylcellulose:
1. Ukuqonda Izinto Ezibalulekile
I-HEMC iyi-non-ionic cellulose ether, okususelwa ku-cellulose lapho amaqembu e-hydroxyl ethathelwe indawo ngokwengxenye ngamaqembu e-hydroxyethyl kanye ne-methyl. Lokhu kuguqulwa kuthuthukisa ukuncibilika kwayo kanye nokusebenza kwayo. Ukwazi izakhiwo zayo zamakhemikhali nezomzimba, njengokuncibilika, i-viscosity, kanye nokuqina, kusiza ekuyiphatheni ngokuphephile.
2. Imishini Yokuzivikela Yomuntu Siqu (i-PPE)
Amagilavu Nezingubo Zokuvikela:
Gqoka amagilavu amelana namakhemikhali ukuze uvimbele ukuthintana kwesikhumba.
Sebenzisa izingubo zokuzivikela, okuhlanganisa amahembe namabhulukwe anemikhono emide, ukuze ugweme ukuchayeka esikhumbeni.
Ukuvikelwa Kwamehlo:
Sebenzisa izibuko zokuphepha noma izihlangu zobuso ukuze uvikele uthuli noma ukuchaphazeka.
Isivikelo Sokuphefumula:
Uma usebenzisa i-HEMC ngendlela yempuphu, sebenzisa izifihla-buso zothuli noma ama-respirator ukuze ugweme ukuhogela izinhlayiya ezincane.
3. Ukuphatha Nokugcina Izinto
Umoya opholile:
Qinisekisa ukuthi kunomoya owanele endaweni yokusebenza ukuze unciphise ukunqwabelana kothuli.
Sebenzisa umoya wokukhipha umoya wendawo noma ezinye izilawuli zobunjiniyela ukuze ugcine amazinga omoya engaphansi kwemingcele yokuchayeka enconyiwe.
Isitoreji:
Gcina i-HEMC endaweni epholile, eyomile kude nomswakama kanye nokukhanya kwelanga okuqondile.
Gcina izitsha zivaliwe kahle ukuze kuvinjelwe ukungcola kanye nokumuncwa komswakama.
Gcina kude nezinto ezingahambisani nezimo ezifana nezinciphisi ezinamandla.
Izindlela Zokuqapha:
Gwema ukudala uthuli; phatha ngobumnene.
Sebenzisa amasu afanele njengokumanzisa noma ukusebenzisa umshini wokuqoqa uthuli ukuze unciphise izinhlayiya eziphuma emoyeni.
Sebenzisa izindlela ezinhle zokuhlanza indlu ukuze uvimbele ukwakheka kothuli ezindaweni.
4. Izinqubo Zokuchitha Nokuvuza
Ukuchitheka Okuncane:
Shanela noma uvale izinto bese uzibeka esitsheni esifanele sokulahla imfucuza.
Gwema ukushanela okomile ukuze uvimbele ukusabalala kothuli; sebenzisa izindlela ezimanzi noma izihlanzi ze-vacuum ezihlungiwe yi-HEPA.
Ukuchitheka Okukhulu:
Susa indawo bese uphefumula umoya.
Gqoka i-PPE efanele futhi uvimbele ukuchitheka ukuze uvimbele ukusabalala.
Sebenzisa izinto ezingasebenzi njengesihlabathi noma i-vermiculite ukuze umunce into.
Lahla izinto eziqoqiwe ngokuvumelana nemithetho yendawo.
5. Ukulawula Ukuchayeka kanye Nokuhlanzeka Komuntu Siqu
Imikhawulo Yokuchayeka:
Landela iziqondiso ze-Occupational Safety and Health Administration (OSHA) noma imithethonqubo efanele yendawo mayelana nemikhawulo yokuchayeka.
Ukuhlanzeka Komuntu Siqu:
Geza izandla kahle ngemva kokuphatha i-HEMC, ikakhulukazi ngaphambi kokudla, ukuphuza, noma ukubhema.
Gwema ukuthinta ubuso bakho ngamagilavu noma izandla ezingcolisiwe.
6. Izingozi Zempilo Nezinyathelo Zosizo Lokuqala
Ukuphefumula:
Ukuchayeka isikhathi eside othulini lwe-HEMC kungabangela ukucasuka kokuphefumula.
Hambisa umuntu othintekile emoyeni omusha bese ucela usizo lwezokwelapha uma izimpawu ziqhubeka.
Ukuthintana Kwesikhumba:
Geza indawo ethintekile ngensipho namanzi.
Funa iseluleko sezokwelapha uma kuvela ukucasuka.
Ukuthintana Kwamehlo:
Hlanza amehlo kahle ngamanzi okungenani imizuzu eyi-15.
Susa amalensi okuxhumana uma ekhona futhi kulula ukukwenza.
Funa usizo lwezokwelapha uma ukucasuka kuqhubeka.
Ukungenisa:
Hlanza umlomo ngamanzi.
Ungabangeli ukuhlanza ngaphandle kokuthi kuqondiswe abasebenzi bezokwelapha.
Funa usizo lwezokwelapha uma ugwinya inani elikhulu.
7. Izingozi Zomlilo Nokuqhuma
I-HEMC ayishisi kakhulu kodwa ingasha uma ibekwe emlilweni.
Izinyathelo Zokulwa Nomlilo:
Sebenzisa isifutho samanzi, igwebu, amakhemikhali omile, noma i-carbon dioxide ukucima umlilo.
Gqoka izingubo zokuzivikela eziphelele, okuhlanganisa nethuluzi lokuphefumula elizimele (SCBA), lapho ulwa nemililo ehilela i-HEMC.
Gwema ukusebenzisa imifudlana yamanzi enomfutho ophezulu, engasakaza umlilo.
8. Izinyathelo Zokuqapha Ezemvelo
Gwema Ukukhululwa Kwemvelo:
Vimbela ukukhishwa kwe-HEMC endaweni ezungezile, ikakhulukazi emanzini, njengoba kungathinta impilo yasemanzini.
Ukulahlwa:
Lahla i-HEMC ngokwemithetho yendawo, yesifundazwe, kanye neyesifundazwe.
Ungachitheli amanzi emifuleni yamanzi ngaphandle kokwelashwa okufanele.
9. Ulwazi Lokulawula
Ukulebula Nokuhlela:
Qinisekisa ukuthi izitsha ze-HEMC zibhalwe kahle ngokwezindinganiso zomthetho.
Zijwayeze ne-Safety Data Sheet (SDS) bese ulandela iziqondiso zayo.
Ezokuthutha:
Landela imithethonqubo yokuthutha i-HEMC, uqinisekise ukuthi izitsha zivaliwe futhi zivikelekile.
10. Ukuqeqeshwa kanye Nemfundo
Ukuqeqeshwa Kwabasebenzi:
Nikeza ukuqeqeshwa ngokuphathwa, ukugcinwa, kanye nokulahla i-HEMC ngendlela efanele.
Qinisekisa ukuthi abasebenzi bayazi ngezingozi ezingaba khona kanye nezinyathelo zokuphepha ezidingekayo.
Izinqubo Eziphuthumayo:
Thuthukisa futhi uxoxe ngezinqubo eziphuthumayo zokuchitheka, ukuvuza, kanye nokuvezwa.
Yenza izivivinyo njalo ukuqinisekisa ukulungela.
11. Izinyathelo Zokuqapha Eziqondene Nomkhiqizo
Izingozi Eziqondene Nokwakheka:
Kuye ngokwakhiwa kanye nokuhlushwa kwe-HEMC, izinyathelo ezengeziwe zokuqapha zingadingeka.
Bheka iziqondiso eziqondene nomkhiqizo kanye nezincomo zomenzi.
Iziqondiso eziqondene nohlelo lokusebenza:
Kwezemithi, qiniseka ukuthi i-HEMC isezingeni elifanele lokuyidla noma lokuyijova.
Ekwakhiweni, qaphela uthuli oluvelayo ngesikhathi sokuxuba nokusebenzisa.
Ngokulandela lezi zinyathelo zokuphepha, izingozi ezihlobene nokusetshenziswa kwe-hydroxyethyl methylcellulose zingancishiswa kakhulu. Ukuqinisekisa indawo yokusebenza ephephile akuvikeli nje kuphela abasebenzi kodwa futhi kugcina ubuqotho bomkhiqizo kanye nendawo ezungezile.
Isikhathi sokuthunyelwe: Meyi-31-2024