PH升到8.5以上，黠解？ [複製鏈接]

pat_shiu

論壇元老

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樓主

發表於 2012-9-7 17:10:37 |顯示全部樓層

唔可以用蒸餾水check PH錶........一定要用buffer solution (pH4.0 and pH7.0)

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pat_shiu

論壇元老

Rank: 7 Rank: 7 Rank: 7

沙發

發表於 2012-9-7 17:19:52 |顯示全部樓層

pH electrodes (PH錶) function by interacting with the ion elements present in water and distilled water generally does not have enough ions for a proper reading, thats why PH錶 cannot give correct reading on distilled water

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