LIPTPH

L533-0023

Lineco

The Lineco Ph Testing Pen is 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.