Abbey Caneta pH PROMO

Actualmente indisponível

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10,95 €

IVA incuído,condições de entrega

To use the Abbey pH Pen, draw a small line or spot in an unobtrusive area of the material being tested. If the mark is pale yellow, the paper is acidic. If the mark is pale purple, the paper is neutral or alkaline. On papers of intermediate acidity, the mark will turn a tan color that combines yellow and purple. The light shade of the line helps make the spot-test as inconspicuous as possible.

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