GroLine pH 4.01 Calibration Solution


GroLine pH 4.01 Calibration Solution




HI7004-050 is a high quality pH 4.01 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 +/- 0.02 pH @ 25°C and are traceable to NIST Standard Reference Materials (SRMs).


The HI7004-050 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




Accuracy ±0.02 pH
pH Value @25°C 4.01
Package bottles
Size 500 mL
Quantity 1
Certificate of Analysis Yes


GroLine pH 4.01 Calibration Buffer – 500 mL

HI7004-050 is a high quality pH 4.01 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 air tight with a tamper-proof seal to ensure the quality of the solution. Hanna’s line of technical calibration buffers have 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 +/- 0.02 pH @ 25°C
  • Temperature chart of the actual pH value at various temperatures printed on each bottle


There are no reviews yet.

Be the first to review “GroLine pH 4.01 Calibration Solution”

Your email address will not be published. Required fields are marked *