HI5091 pH 9.18 Technical Calibration Buffer (500 mL)

HI5091 is a premium quality pH 9.18 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 HI5091 is supplied with Certificate of Analysis

• Product code

• Lot number

• Mean lot value

• SRMs that were used

• Manufacturing date

• Expiration date

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