1. Sab nraud ntawm lub tshuab tua hluav taws kub ntsuas yuav tsum tsis txhob muaj qhov tsis xws li deformation thiab kev puas tsuaj, txwv tsis pub nws yuav tsum tau hloov.
2. Txawm hais tias tus pointer ntawm lub ntsuas ntsuas ntawm lub tshuab tua hluav taws yog nyob rau hauv thaj chaw ntsuab, txwv tsis pub nws yuav tsum tau ntim cov roj tsav tsheb.
3. Txawm hais tias lub nozzle ntawm lub tshuab tua hluav taws muaj qhov tsis xws luag xws li deformation, tawg, thiab puas, txwv tsis pub nws yuav tsum tau hloov.
4. Txawm hais tias lub dav hlau hose tsis thaiv, txawm tias muaj deformation thiab puas, txwv tsis pub nws yuav tsum tau hloov.
5. Cov khoom siv hlau xws li lub siab tuav thiab lub valve lub cev ntawm lub tshuab tua hluav taws yuav tsum tsis txhob muaj kev puas tsuaj loj, deformation, xeb thiab lwm yam tsis xws luag uas cuam tshuam rau kev siv, txwv tsis pub lawv yuav tsum tau hloov.
6. Txawm hais tias tus pin kev ruaj ntseg thiab cov hlau lead foob tsis zoo thiab seb lawv puas tau qhib thiab txau.
7. Lub tshuab tua hluav taws uas muaj qhov deformation loj ntawm lub tog raj kheej, kev xeb loj ntawm lub tog raj kheej (ib cheeb tsam loj ntawm patent tawv ntog tawm, thiab qhov xeb cheeb tsam ntau dua los yog sib npaug rau ib feem peb ntawm tag nrho cheeb tsam ntawm lub tog raj kheej) los yog qhov txuas thiab hauv qab ntawm lub tog raj kheej yuav tsum tau muab pov tseg.
8. Cov roj hmab thiab cov yas ntawm lub tshuab tua hluav taws yuav tsum tsis txhob deformed, discolored, laus los yog tawg, txwv tsis pub lawv yuav tsum tau hloov.
