The Jant Pharmacal Accutest Nitrazine Indicator Paper offers an economical and reliable solution for in-vitro determination of body-fluid pH within the 4.5 to 7.5 range. This FDA-listed medical pH test product is widely utilized in hospitals and doctors offices, particularly for detecting the presence of amniotic fluid in vaginal secretions during late-term pregnancy, which can indicate premature amniotic sac rupture. Each roll of Accutest pH Nitrazine Indicator Paper is conveniently packaged in an easy-to-use dispenser and provides approximately 100 tests, complete with a color chart for instant, easy-to-read results that match clearly at 0.5 intervals across the pH spectrum. The dispenser contains a roll measuring 1/2 Inch X 50 Foot, with each test paper providing clear, bright matches from pH 4.5 to 7.5. Despite a prior mention of the roll size being 1/4 inch wide x 15 feet, the product title specifies a 1/2 Inch X 50 Foot roll, ensuring ample supply for numerous tests.