- Lineco pH Testing Pen
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pictureline
From $6.05 (New)
From $6.05 (New)
| Latest | $6.05 4 hrs ago |
| Highest | $6.05 Feb 3, '16 |
| Lowest | $5.95 Oct 29, '15 |
| Average | $6.05 (30d avg) $6.03 (90d avg) $5.99 (Lifetime average) |
| Added | Oct 29, 2015 |
The quick and easy way to determine if paper or paperboard is acidic or safe for treasured collections. Simply draw a line on the material to be tested. A clear or yellow line indicates material which is unsuitable, a purple line reveals the paper is safe for preservation purposes.