7-3000-17 pH Test Paper Blue Litmus

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The 7-3000-17 is pH Test Paper Blue Litmus, pH 4.3-6.8, 100 strips per vial.

 Used to test acids from pH 4.3 red to 6.8 blue/violet.
Item# Description
7-3000-16 pH Test Paper, Red Litmus, pH 6.8-8.1, Base or Alk.
7-3000-17 pH Test Paper, Blue Litmus, pH 4.3-6.8, Acid