Kev ceev faj rau kev siv ph meter
1. Raws li ib txwm muaj, thaum lub pH meter yog siv tas li, nws yuav tsum tau calibrated ib hnub ib zaug; Feem ntau, qhov ntsuas tsis tas yuav tsum tau ntsuas hauv 24 teev.
2. Ua ntej siv, rub lub tes tsho roj hmab rau ntawm qhov kawg ntawm lub electrode ntawm pH meter kom nthuav tawm qhov me me ntawm qhov kawg.
3. Cov tshuaj calibration buffer feem ntau siv pH =6 86 tov rau thawj zaug, thiab cov tshuaj tsis nyob ze rau tus nqi pH ntawm cov tshuaj ntsuas rau zaum ob. Yog tias qhov ntsuas ntsuas yog acidic, qhov tsis yuav tsum yog pH =4 00; Thaum cov tshuaj yog alkaline, xaiv qhov tsis muaj pH=9.18.
4. Thaum ntsuas, cov hlau lead ntawm cov electrode yuav tsum tau khaws cia, txwv tsis pub nws yuav ua rau qhov ntsuas tsis ruaj khov.
5. Tsis txhob ntub cov electrode hauv dej distilled. Yog hais tias lub electrode siv los ntawm pH meter yog ib tug tshiab electrode los yog ib tug electrode uas tsis tau siv rau lub sij hawm ntev, nws yuav tsum tau soaked nyob rau hauv dej distilled rau ob peb teev ua ntej siv, thiaj li hais tias lub asymmetric muaj peev xwm ntawm lub electrode ntawm pH meter. tuaj yeem txo mus rau theem ruaj khov, yog li txo cov electrode sab hauv tsis kam.
6. Thaum lub ntsuas pH ntsuas pH tus nqi, nws yog ib qho tsim nyog los xyuas kom meej tias lub teeb ntawm lub electrode tag nrho nkag mus rau qhov nruab nrab yuav tsum tau ntsuas, thiaj li yuav tau txais kev ntsuas qhov tseeb dua.
7. Thaum siv lub ntsuas PH, tshem cov roj hmab stopper ntawm cov tshuaj filling chaw nres nkoj ntawm cov khoom siv electrode
