HI50004-01 HANNA Buffer Solution น้ำยาแบบซอง pH4.01

Description

HI50004-01 is a premium quality pH 4.01 technical 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).
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 sachet, it is like using a newly opened bottle of solution!

Specification

Accuracy: Technical ±0.01 pH
pH Value @25°C: 4.01
Package: Sachets
Size: 20 mL (10 Sachets in BOX)
Certificate of Analysis: Yes