Kev kho lub tub yees

Txawm hais tias lub kaw lus puas tau xau, qhov concentration ntawm isobutane nyob rau hauv txhua qhov chaw ntawm cov khoom hluav taws xob uas ignite tsis tuaj yeem ncav cuag qhov txwv tsis pub tawg. Vim tias isobutane hnyav dua li huab cua, nws yuav tsum tau ua kom muaj cua zoo ntawm qhov chaw tu. Thaum sau cov tub yees, txhawm rau zam kom tsis txhob muaj cov hluav taws xob zoo li qub thiab cov hluav taws xob, txhua yam khoom siv yuav tsum muaj kev ntseeg siab, txhua txoj hlua yuav tsum ruaj khov, thiab tsis muaj kev sib txuas tsis raug cai.

a. Ua ntej xyuas seb puas muaj qhov hluav taws kub nyob ib puag ncig thiab tswj kom muaj cua zoo;

b. Npaj cov cuab yeej tshwj xeeb thiab cov khoom siv kho mob;

c. Tshawb xyuas kev nyab xeeb ntawm cov khoom siv tu thiab kev siv fais fab;