The test strips are held in a convenient, plastic dispensing carton. The kits contain a laminated color chart, (2) sample tubes with caps, and (2) 15' test paper rolls that allow for approximately 100 tests per roll. The color chart has color matches at 0, 12.5, 25, and 50ppm (parts per million) of titratable iodine. This kit meets requirements for federal, state, and local health regulations that require users of iodine-based sanitizer solutions to verify their strength with appropriate test kits. For accurate results, store these test strips away from areas with high humidity or where they may be exposed to water before use, as those conditions may compromise results. Additional information Weight 0.13 lbs Quantity 1/Each Length 15 Feet Width 5/32 Inches Test Level 0 - 50 PPM Type Test Kits