pH 4.01 Buffer

SKU: e67adaf05b8a

£3.10£10.15

pH buffer solutions are used to calibrate pH meters to keep them reading accurately.
First adjust your pH pen in buffer 7, then in buffer 4. When it reads correctly in both buffers you know that your pH pen is reading accurately.

Available in 2 sizes:

  • 300ml
  • 1ltr
Weight 0.2500 kg
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