300 pH Paper Test Strips - Full Range Litmus Testing Start Price USD 10.95 Current Price USD 10.95 Time Left - Bid Count 0 Buy It Now Price - Reserve Price - Start Time Sunday, August 17, 2008 End Time Wednesday, August 27, 2008 Location Chicago, Illinois See more about '300 pH Paper Test Strips - Full Range Litmus Testing' Description This listing is for 300 strips of hydrion pH testing paper.  These indicator strips test acidity from a scale of 1 to 14 with 7 being neutral.  Anything below 7 is an acid, anything above 7 is a base (or alkaline). Simply press the testing strip to the object or liquid you are testing.  Then, using the color chart included, compare the color change of the paper to find out the acidity level of your testing subject. Larger quantities available upon request.  Be sure to view my other items at the ScienceSupplies store.  You can also subscribe to receive a newsletter announcing new items and sales here.I will accept payment by money order or PayPal.  Shipping & Handling will be $4.00 for USPS Mail.  International shipping will be $5.00 Place a Bid!