Thaum xaiv cov khoom siv hauv chaw ua si, mus rau qhov zoo tshaj plaws rau koj cov peev nyiaj. Kev xaiv cov qauv qis dua tuaj yeem txhais tau tias muaj kev saib xyuas ntau dua thiab tawg uas tuaj yeem ua rau kev mus ncig, snags lossis raug mob ntawm lub cev.
US Consumer Product Safety Commission qhia txog daim ntawv teev kev nyab xeeb no:
1. Xyuas kom tseeb tias qhov chaw nyob ib ncig ntawm cov khoom siv hauv chaw ua si muaj tsawg kawg yog 12 ntiv tes ntawm cov ntoo chips lossis mulch, los yog siv cov khoom siv roj hmab los yog cov ntaub ntawv zoo li roj hmab.
2. Kev tiv thaiv surfacing yuav tsum ncua tsawg kawg 6 ko taw nyob rau hauv tag nrho cov lus qhia los ntawm cov khoom ua si. Rau cov viav vias, surfacing yuav tsum ncua ob zaug ntawm qhov siab ntawm qhov ncua sij hawm nyob rau hauv pem hauv ntej thiab nram qab.
3. Cov qauv ua si ntau dua 30 ntiv tes siab yuav tsum tau nyob deb li ntawm 9 ko taw sib nrug.
4. Tshawb xyuas cov khoom siv txaus ntshai, xws li qhib "S" hooks lossis cov ntsia hlau uas muaj qhov kawg.
5. Qhov chaw uas tuaj yeem ntes cov menyuam yaus, xws li qhib rau hauv qhov chaw tiv thaiv lossis nruab nrab ntawm cov ntaiv, yuav tsum ntsuas tsawg dua 3.5 ntiv tes lossis ntau dua 9 ntiv tes.
6. Saib xyuas cov ntsiab lus ntse lossis cov npoo hauv cov khoom siv.
7. Nrhiav kev phom sij.
8. Nco ntsoov tias qhov chaw siab muaj qhov thaiv kom tsis txhob ntog.
9. Tsis tu ncua xyuas koj cov khoom siv hauv chaw ua si thiab ntog kom paub tseeb tias lawv nyob hauv qhov zoo.
10. Saib xyuas menyuam yaus hauv chaw ua si kom paub tseeb tias lawv muaj kev nyab xeeb.
