Cov kev sib ntxiv hauv cov txheej txheem ntau lawm ntawm cov nruas basumen meterter cov khoom tuaj yeem faib ua kom huv cov neeg nrawm thiab rov qab ua haujlwm.

Lub nruas ntawm lub nruas bittumen meter cov khoom siv tsawg dua li qhov kub nce ntxiv thaum lub sijhawm tsim khoom. Nws cov zis viscosity yog li ob zaug kom siab li txhua 12 ° C nce. Thaum lub sijhawm tsim khoom, lub nruas hauv lub nruas bittumen meter meter yuav tsum ua ntej tau rhuab rau lub xeev ua kua thiab tom qab ntawd emulsified. Txhawm rau kom tau txais kev sib xyaw ua ke emulsification ntawm colloid milling, lub viscosity ntawm lub hauv paus bittumen decanter feem ntau tswj tau li 200 cst. Qhov ntsuas kub qis dua, qhov ntau dua cov viscosity, uas ua kom tiv thaiv lub nruas ejater ua tsis tau zoo, uas feem ntau ua los ntawm kev siv cov khoom sib tsoo colloid sib tsoo. Cov khoom kub yuav tsum qis dua 85 ℃.
Ib txoj hauv kev tseem ceeb los tswj qhov kub thiab viscosity ntawm nruas bittumen meter me me thaum cov khoom siv yog raws qhov no. Peb yuav tsum ua cov haujlwm tshawb fawb thiab cov haujlwm raws cov qauv raws li cov lus qhia, yog li ua kom pom tau nws cov cwj pwm tshawb xyuas.