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Chimical liquid pH tests; Buffers

The liquid pH testers are also called coloured indicator or acid-base indicator.

This kind of pH tester gives the pH value thanks to a chemical reaction. You just have to read the colour on the colour coded tester.

It is unapropriated to read the pH value with dark organic liquid fertilisers.

The Buffers laboratory liquids used for the calibration and the maintenance of the digital pH and EC/TDS testers.



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