pH 3.00 Technical Calibration Buffer (500 mL) - HI5003

In stock
HI5003 is a premium quality pH 3.00 technical calibration buffer that is NIST traceable and supplied with a Certificate of Analysis. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are airtight with a tamper-proof seal to ensure the quality of the solution. Hanna’s line of technical calibration buffers has been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle.
  • Supplied with Certificate of Analysis
  • Accuracy of /- 0.01 pH @ 25°C
  • Temperature chart of the actual pH value at various temperatures printed on each bottle


HI5003 is a premium quality pH 3.00 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 (SRM).

The HI5003 is supplied with certificate of Analysis

  • Product code
  • Lot number
  • Mean lot value
  • SRM’s 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


RH Accuracy

Technical ±0.01 pH

pH Value @25°C








Certificate of Analysis