Litmus test - Wikipedia, the free encyclopedia
Litmus is a water-soluble mixture of different dyes extracted from lichens, especially Roccella tinctoria. It is often absorbed onto filter paper to produce one of the oldest forms ...

What Is Litmus Paper?
You can make paper test strips to determine the pH of an aqueous solution by treating filter paper with any of the common pH indicators. One of the first indicators used for this ...

How litmus paper is made - material, making, history ...
Aluminum, Ambulance, Antiperspirant/Deodorant Stick, Artificial Blood, Artificial Flower, Bean Bag Plush Toy, Bed Sheet, Billboard, Bioceramics, Bisque Porcelain Figurine, etc?

litmus paper: Definition from Answers.com
litmus paper n. An unsized white paper impregnated with litmus and used as a pH or acid-base

pH Test Paper Strips - 1 to 14 scale litmus paper ...
Get this package of 100 pH test paper strips at Edmund Scientific. Shop online for great deals on pH paper and other scientific supplies!