Los ntawm cov khoom ua si, tus menyuam kawm paub lub ntiaj teb. Yog li ntawd, lawv yuav tsum tsim kho thiab muab kev kawm rau nws. Thaum mus yuav lwm cov khoom ua si, xav txog seb koj tus menyuam puas xav tau nws.
Cov Lus Qhia
Kauj ruam 1
Thaum nriav, tshuaj xyuas cov khoom ua si kom zoo zoo. PP cim - polypropylene - tsis ua rau muaj kev phom sij rau tib neeg. Cov ntawv pov tseg, lam fwj, thiab menyuam cov khoom ua si yog ua los ntawm hom yas. PVC lossis PVC npav - polyvinyl chloride. Cov yas no yog qhov txaus ntshai rau kev noj qab haus huv. Koj yuav tsum tsis txhob yuav cov khoom ua si nrog cov cim no. Lawv ua rau lub siab puas tsuaj, ntxiv lawm tshob thiab mob cancer.
Kauj ruam 2
Xaiv cov khoom ua si raws hnub nyoog. Tsis tas yuav yuav tus tsim tsim kho kom haum rau tus menyuam hnub nyoog 2 xyoos.
Kauj ruam 3
Ua tib zoo saib daim ntawv lo. Nws yuav tsum muaj cov paib ceeb toom: "Ceev faj! Flammable!", "Tsis pom zoo rau cov menyuam muaj hnub nyoog qis dua peb xyoos." Ib qho khoom ua si tuaj yeem txaus ntshai yog tias:
- nws muaj cov ces kaum ntse;
- rooj plaub tsis yooj yim;
- cov khoom ua ntoo yuav tsum du.
Kauj ruam 4
Ua ntej tshaj, cov khoom ua si yuav tsum siv tau thiab tsis ua rau muaj kev kub ntxhov nyob hauv tus menyuam.
Kauj ruam 5
Xaiv cov khoom ua si los ntawm txoj hauv kev uas nws pab tus menyuam tsim, kawm txog lub ntiaj teb ntawm cov nroj tsuag, tsiaj txhu lossis hom haujlwm.
