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Buffer standard solutions for laboratory and field analyses
pH Buffer Powder Pillows for pH electrode calibration. Each powder Pillow prepares 50 mL of fresh buffer solution. Colorless. pH is 6.00 ±0.02 at 25°C. Pack of 50 Powder Pillows. Pack of 50 Powder Pillows

Traceable to NIST standard reference materials
Design for use with Hach meters portfolio and other meters.
Reliable packaging