ph meter calibration 3-point calibration txheej txheem
Nrog lub calibration ua tiav nrog 7.004.01, yog xav tau ib tug thib peb point dua kuv yuav tsum tau siv lub 9.21 tsis los yog lwm yam buffers xws li 10.01, 9.18, 12.46, 1.68, thiab lwm yam? Yuav txiav txim li cas?
1, Qhov tseeb, ntau npaum li cas qhov thib peb ntawm pH xaiv calibration yog nyob ntawm koj qhov xwm txheej. Raws li koj tau hais, muaj ntau ntau yam kev daws teeb meem los ntawm pH1.68 ~ 12.46, raws li qhov kawg pH ntau yam ntawm cov qauv txiav txim siab xaiv cov kev daws teeb meem tsim nyog. Peb feem ntau siv yog 4.00, 6.86, 9.18, yog tias koj tus qauv yog alkaline ntau, koj xav tau 9.18, 10.01, 12.46. calibration xaj raws li cov cuab yeej sib txawv kuj sib txawv, qee qhov xav tau calibration hauv kev txiav txim, thiab qee qhov tsis xav tau, cov cuab yeej yuav raug lees paub, koj yuav tsum xa mus rau phau ntawv qhia kev ntsuas ntsuas.
2, txawm li cas los xij ntawm pH meter, pH=7 qhov taw tes no yuav tsum raug kho, thiab nyob rau hauv ob lub ntsiab lus calibration yuav tsum tau kho thawj pH=7 taw tes no. Ua qhov calibration los ntawm 7.0 pib, xaiv cov txheej txheem kev daws teeb meem thiab txiav txim siab tus nqi pH ntawm cov tshuaj, kom cov pH tus nqi ntawm cov tshuaj tuaj yeem poob rau hauv qhov kho pH ntau yam. Feem ntau ob lub ntsiab lus tuaj yeem siv los ua kom tau raws li qhov yuav tsum tau ua, yog tias qhov kev xav tau siab heev, ua ntej txiav txim siab qhov thib peb. Qee cov cuab yeej tuaj yeem ntsuas peb lub ntsiab lus, muaj cov qauv xaiv, koj tuaj yeem siv hom ncaj qha. Qee qhov tsis muaj, feem ntau yog ob-point ob-point calibration, uas yog, calibration ob zaug.
3, peb feem ntau siv 7, 4, 10 calibration txiav txim. Ua ntej calibrate acid thiab ces calibrate alkali.
