Hanna Instruments HI7004L 4.01 pH Calibration Buffer Solution, 500mL Bottle

Description

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.
Air-tight bottle with a tamper-proof seal of freshness to ensure quality.
Opaque bottle reduces light exposure that could alter the buffer value.
HI7000 Series (Standard)
Basic buffers that suit most users
Certificate of Analysis (COA) on request
Accuracy of ±0.01 pH @ 25°C