Hanna pH 4.01 Calibration Buffer Sachets (1 x 20 mL) - HI70004

Sale price$1.99


HI70004P is a premium quality pH 4.01 calibration solution. Each sealed sachet holds just the right amount of pH buffer solution making every sachet as fresh as the day it was packaged!

  • Highly portable, with a small footprint and a lightweight design.
  • Color coded label for easy identification of pH 4 buffer value.
  • Perfect for use with testers and portable meters!

      HI70004P is a quality pH 4 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).

Convenience of individual packaging

      • Ideal for users that do not calibrate frequently
      • Ideal for field use due to portability
      • Every pH buffer sachet is as fresh as the day it was packaged
      • Light block packaging prevents oxidation from UV light that could alter the buffer value

Each sachet marked with lot number and expiration date.

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

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

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