TOPWAY PH Calibration Powder Solution Buffer, PH 4.00 + PH 6.86, 8Pcs 250ml Ideal for PH Meter Accurate Calibration
Product ID: 293104671
Description
Product description: Specifications: Each pack volume: 250 ml Accuracy: ±0.01pH at 25°C Color: show as pictures Size: 7.5x6.5cm Directions for use: 1. Prepared distilled water: 250mL for each pack. 2. Completely empty the power into a clean 250mL glass beaker. 3. Add 250mL of distilled water to the beaker. 4. Stir until the power has completely dissolved. Please Note: Please do not put it in places where the children they can touch it, so that they can eat it as food. Package included: 4 pack PH 4.01 Buffer Powder 4 pack PH 6.86 Buffer Powder
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