Hanna Instruments HI70007 pH 7.01 buffer solution 20ml

HI7000 Series Standard pH Buffer Solutions
Certified for quality results.
Our standard buffer solutions are prepared according to precise formulas and are standardized with a pH meter and electrode calibrated with NIST standards. A Certificate of Analysis (COA) is available as needed for ultimate traceability.
Marked with lot number and expiration date for Good Laboratory Practice.
Hanna pH buffers are specially formulated to have an expiration of 5 years from manufacture for an unopened bottle.
Color coded for a quick ID.
Working in a fast-paced, busy lab? No problem. With color coded calibration buffers, you always know you have the right solution in hand. These solutions do not contain any dyes that may stain the reference cell of a pH electrode.