Hanna Instruments GroLine pH 4.01 Calibration Buffer

★★★★★ 4.6 149 reviews

$23.11
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$23.11
Price when purchased online
Free shipping Free 30-day returns

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Product details

Management number 232680928 Release Date 2026/06/21 List Price $9.24 Model Number 232680928
Category

GroLine pH 4.01 Calibration Buffer 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 has been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle.

GroLine pH 4.01 Calibration Buffer 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 GroLine pH 4.01 Calibration Buffer 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 of +/- 0.02 pH @ 25°C
  • Temperature chart of the actual pH value at various temperatures printed on each bottle

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4.6 out of 5
★★★★★
149 ratings | 61 reviews
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