Hanna Instruments pH 4 Calibration Solution, 500 ml

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$ 19.99
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# HI701
In Stock
Weight: 1.20 lbs

Premixed pH 4 calibration solution

A premixed calibration solution designed for pH meters when measuring pH levels below 7.

Dip the pH electrode into pH 7.01 solution as a first buffer and wait for unit to stabilize to 7.01 pH. Then use 4.01 as a second buffer solution and wait for your meter to stabilize to 4.01.

Discard buffers after each use.

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