Lub viscometer tshuab ntsuas qhov txaus ntseeg yog lub khoom sib txawv uas pab txhawb rau kev tshuab xyuam qhov kub lossis qhov nyuaj ntawm cov dej. Lub khoom no yog qhov tseem ceeb rau ntau yam thaj chaw, piv txwv li: qhov kho hmoov, qhov kho tshuaj, thiab qhov kho tshuaj ntsuab. Nws pab cov neeg tsim khoom tshuab xyuam qhov nyuaj lossis qhov txaus ntseeg ntawm ib yam khoom, uas yuav cuam tshuam rau qhov kev ua haujlwm ntawm khoom. Yog tias, piv txwv li: qhov siab yog qhov nyuaj heev, nws yuav tsis tuaj yeem sau; yog tias qhov siab yog qhov txaus ntseeg heev, nws yuav tsis tuaj yeem nyooj tau zoo rau hmoov. Cov kompiaj li ZONWON muab cov khoom tshuab uas tuaj yeem tso cai. Viscometers los pab rau kev tshuab xyuam qhov nyuaj lossis qhov txaus ntseeg ntawm cov dej. Los ntawd, cov kompiaj tuaj yeem tso cai tias cov khoom tau txais qhov tseem ceeb ntawm qhov zoo thiab tuaj yeem tswj qhov xav tau ntawm cov neeg siv khoom.