Lineco

pH Testing Pen

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Lineco

pH Testing Pen

The Lineco pH Testing Pen is an easy, convenient method for testing pH levels in paper and cardboard. Simply draw a line and instantly determine the answer. The red chlorophenol indicator solution turns a definite purple colour on any paper with a pH of 6.5 or higher. Any other colour would indicate a material most likely unsuitable for conservation purposes.

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