I-Dewar Flask yesitoreji sikagesi
1. Lapho uhlanganyela kunoma yimuphi umsebenzi ngotshwala be-crygenic, kufanele ugqoke imishini yokuvikela ukuvikela i-frostbite.
2. Ngesikhathi sokusebenza kwe-oxygen ewuketshezi, i-valve kufanele ivulwe futhi ivalwe kancane. Uma ivuliwe futhi ivaliwe kungazelelwe, ukuhamba komoya-mpilo kuzokukhanyisa noma yikuphi ukungcoliswa kohlelo.
3. Ngaphandle komoya oksitin, wonke ama-vapors anamandla angadala ukugcotshwa.
I-4. Ivolumu yokugcwalisa ayikwazi ukwedlula: 192kg ye-oklygen ewuketshezi, i-136kg ye-nitrogen ewuketshezi, kanye ne-230kg ye-argon ewuketshezi.
5. Lapho usebenzisa uketshezi, kunconywa ukunciphisa ingcindezi ngaphakathi kwebhodlela ngangokunokwenzeka.
I-6. Isilinda kumele sigcinwe siqonde ngesikhathi sokusebenza, futhi ukubhoboza ngaphezulu kufanele kugwenywe. Ungalokothi ugoqe isilinda ngokuvundlile.
7 Yonke imithombo yomlilo kufanele iqedwe, futhi akufanele kube nezimpawu zomlilo.
8 Kufanele kube khona i-weir evinjiwe ewuketshezi emnyango we-trench. .
9. Lapho ugcwalisa noma uphatha umoya-mpilo owuketshezi, abaqhubi abavunyelwe ukugqoka izingubo zomsebenzi kanye nemishini yokuvikela yomuntu siqu engcoliswe ngamafutha. Zonke izingubo nezinto zokuvikela ezingcoliswe yi-grease kumele zifakwe esikhundleni.