HI5004 HANNA Buffer Solution น้ำยามาตรฐาน pH4.01

Description

HI5004 is a premium quality pH 4.01 Technical buffer solution, National Institute of Standards and Technology (NIST) traceable and supplied with a Certificate of Analysis.
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.
Buffer solutions should be stored at 25 C, away from direct sunlight for accurate readings.
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.
Standard buffers, +/- 0.01 @ 25◦C, and features 20 pH levels, from pH1.00 through to pH13.00, effectively covering every point on the pH scale.

Specifications

Accuracy: Technical ±0.01 pH
pH value at 25°C: 4.01
Package: Bottles
Size: 500 mL
Certificate of Analysis: Yes