• A hand holding a Lineco pH Testing Pen, drawing a line on a piece of paper, with a black mark at the end of the pen.

Lineco pH Testing Pen

 Use Lineco's pH Testing Pen to easily determine if your paper and board are acidic. Draw a line on the material and check for a purple colour, indicating pH neutrality. A clear or yellow colour means the material may not be suitable for conservation. For long-lasting paper, aim for a pH of 6.0 or higher, with an alkaline reserve of 7.0 or greater.

Keep in mind that this is a pH indicator and may not produce accurate results for coloured, coated, or unbuffered materials. 

SKU: F100.24
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