501-S
NIST pH Buffer Solution Kit
The NIST pH Buffer Solution Kit comes in a box containing:
- pH 4.01 ±0.02 Buffer Solution at 25 °C (250 ml)
- pH 6.86 ±0.02 Buffer Solution at 25 °C (250 ml)
- pH 9.18 ±0.02 Buffer Solution at 25 °C (250 ml)
- 3.33 M KCl Internal Reference Solution (250 ml)