HI84102-61 is a pH 8.20 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 @ 25oC and are traceable to NIST Standard Reference Materials (SRMs).

Air tight bottle with tamper-proof seal

• Ensures quality and freshness of solution

Each bottle marked with lot number and expiration date

• Hanna buffers are specially formulated to have an expiration of 5 years from manufacture for an unopened bottle

This pH 8.20 buffer solution is dyed purple for easy identification

• Easy to identify which buffer is being used for calibration