Hanna Instruments HI7004L 4.01 pH Calibration Buffer Solution, 500mL Bottle combination electrode Range: 0-9990 ppm: (0 –

Range: 0-9990 ppm: (0 – 999 ppm the resolution is 1 ppm

1 g/100 ml | 0

With four measurement scales

The reagents are designed for use with samples that have an expected maximum range of 0

Hanna Instruments HI7004L 4.01 pH Calibration Buffer Solution, 500mL Bottle combination electrode Range: 0-9990 ppm: (0 –This buffer value is widely used in water purification plants, in the food industry, and wherever the pH is expected to be slightly acidic. Traceable to NIST standards Available in bottles or sealed sachets, complete with or without a certificate of analysis. Multiple resolutions for better accuracy. NIST Traceability Standardized using a pH meter calibrated by means of two standard solutions prepared from NIST standard reference materials. Color