100 Bartovation Chlorine Test Paper Strips For Testing Sanitizer Strength, 10-200 ppm Perfect for testing chlorine sanitizers and avoiding hefty board of health fines! One pocket sized, splash proof, lightweight vial protecting instructions and color chart with 100 pre-cut strips Industry leading rapid one second test Tests in a range of 10-200 ppm (10, 50, 100 and 200 ppm markings) These are NOT for pool OR tap water tests. They ARE designed specifically for restaurants testing their chlorine sanitizers in 3 part sinks