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Reel, litmus red, 7 mm × 5 m, pH indicators and test papers, acidalkali, dispenser Reel, litmus red, acidalkali, dispenser. Instant pH readings. Accurate for a wide range of routine pH testing. Inexpensive. Convenient and portable for field use. GE Healthcare offers a range of pH indicator and test papers to meet specific needs. These highquality products combine easeofuse with unsurpassed accuracy and consistency. The convenience of using indicator papers for the rapid determination of pH values has led to many applications in laboratories and in industry. These easytouse test papers facilitate a general test for acid or alkaline reaction. The change occurs around pH 5 to 8. They are particularly recommended for educational use. Litmus Blue and Litmus Red

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