pH Standard Buffer Powder

Solid material for pH 4.01, pH 7.00, pH 10.01 (or pH 4.01, pH 6.86, pH 9.18) buffer solution are provided in a set of sachets.

  Description 

How to prepare the buffer solution:

Solid material for pH 4.01, pH 7.00, pH 10.01 (or pH 4.01, pH 6.86, pH 9.18) buffer solution are provided in a set of sachets.

Glass jars or beakers are recommended as the solution container.

Take making the 250mL buffer solution of pH7.00 as an example:

1. Put the pH7.00 buffer solution (in the green sachet) in a jar (the volume should be less than 250mL);

2. Place a glass rod in the solution, swirling it until the white powder dissolved;

3. Fill the volumetric flasks  with 250mL distill water;

4. Store the pH standard buffer solution in a dry place with the temp. of 20-25;

5. For the future calibration, Ensure that there is a contant supply of fresh buffer solution in contact with the probe.

Discard the solution after use.

pH Standard Buffer Powder