Lineco, PH Testing Pen, Pen Tester for Paper or Paperboard Products, Easy to ...
$ 17.95
Description
Lineco pH testing pen is an easy, convenient test pen to distinguish between alkaline paper and board, and acidic paper and board. The chlorophenol red indicator solution turns a definite purple color on any paper with a pH of 6.5 or higher. Basic Info: Material created and made in USA. Lineco is a leading and trusted brand for archival art, photography, and framing supplies Quick reflection: Shows within seconds if your paper products are archival. Clear or yellow line means bad - Purple line means archival Storage condition: Paper can be reasonably long-lived if its pH is 6.0 or higher, especially if it is well made and carefully used and stored. It must have an alkaline reserve and this usually means a pH of 7.0 or greater Easy to use: Simply draw a small line on the material you wish to test. The line drawn will turn purple on most papers if there is an indication of pH neutrality Please note: This is a pH indicator only. Unreliable results may occur on colored, coated, or unbuffered materials
