9V70004

CALIBRATION SOLUTION 20ML PH 4.01 -SACHET

It is a standard pH 4.01 calibration solution produced in accordance with ISO 3696 / BS3978 standards using pure salts, deionized water, certified scales and Class A glass materials in a temperature controlled environment with certified thermometers. The values shown have an accuracy of +/- 0.01 pH at 25 C and refer to the NIST (Standard Reference Materials - SRMs) standards.
Ideal for users who do not calibrate the instrument frequently
Ideal for use in the field
Each sachet contains fresh solution
The package protects the solution from UV rays that could alter the value of the buffer.
The solution contains no dyes which can stain the reference cell of a pH electrode.
Accuracy pH 0.01 pH
PH value @ 25 C 4.01

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