Yieryi Professional Ph Buffer Solution Fill With 250ml Distill Water 4.01 6.86 CE Standrad
Yieryi Professional Ph Buffer Solution Fill With 250ml Distill Water 4.01 6.86 CE Standrad Description
ph pen tester,
handy ph meter
PH Powder Calibration Solution pH4.01, pH6.86
- 5x PH 4.01
- 5x PH 6.86
- 5x PH 7.0
- 5x PH 9.18
- 5x PH 10.01
- As this is a powder, in a sealed packet there is no "shelf life".
- The contents will make up to 250ml each.
- Just add water or distilled water. 555
Take making the 250ml buffer solution of pH6.86 as an example:
1. Put the pH6.86 buffer solution(in the green sachet) in a jar (the volume should be no less than 250ml)
2. Fill the far with 250ml distill water.
3. Place a glass stick in the solution, swirling it until the white powder dissolved.
4. Store the pH buffer solution in a dry place with the temp. of 20-25oC. Attach a label on it for further use.
5. For the further calibration, Ensure that there is a contant supply of fresh buffer solution in contact with the probe. Discard the solution