FY EP Sci-Tech Co., Ltd
FY EP Sci-Tech Co., Ltd Professional Manufacturer Of Water Test Products Whatsapp/Wechat: +86 18595638963 Email: una@ectdsphmeter.com
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Mak Standard Test Calibration Solutions 2019 Buffer Solution PH 4.01 :
Calibration Method Of Buffer Solution PH 4.01 :
1. Firstly, 6.86 calibration powder is poured into 250ml distilled water or pure water and stirred well. Then, the power of PH pen is turned on and the test end is put into the calibration solution.
2. See if the PH pen shows 6.86 or 6.8 in the correction solution of 6.86. If it does not show 6.8 or 6.86, adjust the screw in the screw hole on the back of the PH pen with a random screwdriver and set the value to 6.86 or 6.8 (0.1 to 6.8)?
3. Find a new cup, the same 250 ml of pure water or distilled water. Pour the correction powder of 4.01 red packaging bag into it, mix it well, and put the PH pen corrected just now into the correction solution of 4.01.
4. 4.01 or 4.0 value indicates that the correction is successful, if the display is not 4.01 or 4.0, it needs to be revised in the same way as before.
PH Standard Value Form For Buffer Solution PH 4.01 :
| ℃ | PH4.00 | PH6.86 | PH9.18 |
| 10 | 4.00 | 6.92 | 9.33 |
| 15 | 4.00 | 6.90 | 9.28 |
| 20 | 4.00 | 6.88 | 9.23 |
| 25 | 4.00 | 6.86 | 9.18 |
| 30 | 4.01 | 6.85 | 9.14 |
| 35 | 4.02 | 6.84 | 9.10 |
| 40 | 4.03 | 6.84 | 9.07 |
| 45 | 4.04 | 6.83 | 9.04 |
| 50 | 4.06 | 6.83 | 9.02 |
