Sell Hanna pH 4.01 Calibration Solution 20 mL HI70004 HI70004P Hanna Instruments pH Meter 1 sachet best price

The pH 4.01 buffer solution is available in quick and easy to use 20ml sachets, one of the most commonly used buffer solutions. It is extremely stable and represents the mid-way point in the acid range of the pH scale - ideal for those requiring an accurate acid reading, particularly those working in water purification plants, the food industry, and wherever the pH is expected to be acidic. The single dose sachets are really handy with each sealed sachet holding just the right amount of solution. Each time a meter or electrode is calibrated using a Hanna sachets, it is like using a newly opened bottle of solution! To correctly maintain your meter/electrode, we highly recommend use of a Hanna cleaning solution, as well as a buffer, for maximum performance every time. pH4, along with pH7, can also be used as an emergency storage solution. HI70004P is a quality pH 4 calibration buffer produced in accordance with ISO 3696/BS3978 standards using high purity salts, deionized water, certified weight-checked balances, and Class A glassware in a temperature controlled environment monitored with certified thermometers. Reported values are accurate to +/- 0.01 pH @ 25°C and are traceable to NIST Standard Reference Materials (SRMs). Convenience of individual packaging ✔ Ideal for users that do not calibrate frequently ✔ Ideal for field use due to portability ✔ Every pH buffer sachet is as fresh as the day it was packaged ✔ Light block packaging prevents oxidation from UV light that could alter the buffer value ✔ Buffer solutions should be stored at 25 C, away from direct sunlight for accurate readings Each sachet marked with lot number and expiration date. ✔ Hanna pH buffers are specially formulated to have an expiration of 5 years from manufacture for an unopened sachet. Color coded label for easy pH buffer value identification ✔ Easy to identify different buffer values ✔ Solution does not contain any dyes that may stain the reference cell of a pH electrode pH Accuracy ±0.01 pH pH Value @ 25°C 4.01 Package: sachets Size: 20 ml 1 order = 1 sachet @ 20 ml