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Lineco Paper PH Testing Pen
ph testing pen for paper
 
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Product Code: L5330023
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Part # L5330023
Lineco Paper and Board pH Testing Pen. An easy, convenient method for distinguishing between safe alkaline paper and board, and unsafe acidic paper and board. Easy to use, simply draw a line and instantly determine the answer. The chlorophenol red indicator solution turns a definite purple color on any paper with a pH of 6.5 or higher. Any other color would indicate a material most likely unsuitable for conservation purposes.


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