pH4.01 Solution Powder, 20g/250ml

Directions for use

1. Completely empty the powder into a clean 250ml glass beaker.
2. Add 250ml of deionized water to the beaker.
3. Stir until the powder has completely dissolved.

pH accuracy is ± 0.01 pH.

The ideal water temperature for calibration is 25°C. Readings must be corrected if the water is at a different temperature.

Temperature table

• 10°С — 4.00
• 15°С — 4.00
• 20°С — 4.00
• 25°С — 4.00
• 30°С — 4.01
• 35°С — 4.02
• 40°С — 4.03
• 45°С — 4.04
• 50°С — 4.06