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Abbey PH testing pen For random testing of paper for acidity. A pale yellow colour change indicates acidity and light purple, neutrality or alkalinity
€9.90 *
PH Indicator Strips three different types: Universal Indicator, for pH 0 - 14, gradation 1 pH (Order Nr.: 21 014); Acilit, for pH 0-6, gradation 0,5 pH (Order Nr.: 21 006); Neutralit, for pH 5 -10, gradation 0,5 pH (Order Nr.: 21 510) 100 strips/pack...
From €23.80 *
Indicator Paper iron Colour-fast barthophenanthroline test strips, 75 x 10 mm, 100 strips with user's manual.
€42.80 *
Bookkeeper Neutralising and buffer solution for non-aqueous de-acidification and buffering of delicate objects or bound books. 150 g Bookkeeper solution in an unbreakable spray bottle with air pump ffor application. Model: 150 g Solution sufficient...
From €67.20 *
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